Periodic Table  
The atoms have been arranged in a table called the Periodic Table. 
In this table the atoms have been arranged in vertical columns based on the similar 
chemical properties due to their electron configuration
  
Group 0 (col 18): Inert gases.. (filled electron shell, stable electron configuration ) 
Group VIIA(col 17): Halogens.. (one electron short of stable structure ) 
Group VIA (col 16): Two electrons short of stable structure 
Groups 1A and IIA  (cols 1 & 2): Alkali and Alkaline earth metals ( One or two electron in excess of stable structure ) 
Groups IIIB to IIB (cols 3 to 12):  Transition metals (partially filled d electron states, one or two electrons in next shell ) 
Groups IIIA ,IVA, VA (cols 13,14,15) : Intermediate characteristics by virtue of valence electron stucture 
Most metal elements  are electropositive (capable of donating a few valence electrons )
 
  
 
 
 In each cell the atomic number is included above the chemical symbol  
  
    | IA | 
    IIA | 
    IIIB | 
    IVB | 
    VB | 
    VIB | 
    VIIB | 
    VIIIB | 
    IB | 
    IIB | 
    IIIA | 
    IVA | 
    VA | 
    VIA | 
    VIIA | 
    0 | 
   
   
    | 1 | 
    2 | 
    3 | 
    4 | 
    5 | 
    6 | 
    7 | 
	 8 | 
	  9 | 
	
    10 | 
    11 | 
    12 | 
    13 | 
    14 | 
    15 | 
    16 | 
    17 | 
    18 | 
   
  
  
    Val 1 | 
    Val 2 | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
    Val 3 | 
    Val 4 | 
    Val 5(-3) | 
    Val 6(-2) | 
    Val 7 (-1) | 
    Inert | 
   
  
  
  
    1 H | 
      | 
       | 
       | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
    2 He | 
   
  
    3 Li | 
    4 Be | 
       | 
       | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
    5 B | 
    6 C | 
    7 N | 
     8 O | 
    9 F | 
    10 Ne | 
   
  
  
    11 Na | 
    12 Mg | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
    13 Al | 
    14 Si | 
    15 P | 
    16 S | 
    17 Cl | 
    18 Ar | 
   
  
  
    19 K | 
    20 Ca | 
    21 Sc | 
    22 Ti | 
    23 V | 
    24 Cr | 
    25 Mn | 
    26 Fe | 
    27 Co | 
    28 Ni | 
    29 Cu | 
    30 Zn | 
    31 Ga | 
    32 Ge | 
    33 As | 
    34 Se | 
    35 Br | 
    36 Kr | 
   
  
    37 Rb | 
    38 Sr | 
    39 Y | 
    40 Zr | 
    41 Nb | 
    42 Mo | 
    43 Tc | 
    44 Ru | 
    45 Rh | 
    46 Pd | 
    47 Ag | 
    48 Cd | 
    49 In | 
    50 Sn | 
    51 Sb | 
    52 Te | 
    53 I | 
    54 Xe | 
   
  
    55 Cs | 
    56 Ba | 
    57-71 * La * | 
    72 Hf | 
    73 Ta | 
    74 W | 
    75 Re | 
    76 Os | 
    77 Ir; | 
    78 Pt | 
    79 Au | 
    80 Hg | 
    81 Tl | 
    82 Pb | 
    83 Bi | 
    84 Po | 
    85 At | 
    86 Rn | 
   
  
    87 Fr | 
    88 Ra | 
    89-103** Ac** | 
    104 Rf | 
    105 Db | 
    106 Sg | 
    107 Bh | 
    108 Hs | 
    109 Mt | 
    110 Uun | 
    111 Uuu | 
    112 Uub | 
    113 Uut | 
    114 Uuq | 
    115 Uup | 
    116 Uuh | 
    117 Uus | 
    118 Uuo | 
   
  
    |   | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
   
  
    * * | 
	Lanthanine Series | 
	57 La | 
    58 Ce | 
    59 Pr | 
    60 Nd | 
    61 Pm | 
    62 Sm | 
    63 Eu | 
    64 Gd | 
    65 Tb | 
    66 Dy | 
    67 Ho | 
    68 Er | 
    69 Tm | 
    70 Yb | 
    71 Lu | 
 
    
   
  
    ** ** | 
	Actinium  series | 
    89 Ac | 
	90 Th | 
    91 Pa | 
    92 U | 
    93 Np | 
    94 Pu | 
    95 Am | 
    96 Cm | 
    97 Bk | 
    98 Cf | 
    99 Es | 
    100 Fm | 
    101 Md | 
    102 No | 
    103 Lr | 
   
   
 
  
 
Table of Atomic Properties of Elements
 
  
Note: The relative atomic mass A.Mass is the number of is the mass compared with carbon -12.  
This is not a simple unit value based on the number of neutrons and protons
because all naturally occurring elements are composed of isotopes e.g. chlorine 
consists of 75% Cl-35 and 25% Cl-37 .  Therefore the AW of Cl = 0.75*35+ 0.25*37 = 35.5.   There are also extremely small variations due to 
mass to energy conversion related to  binding energy of the atomic nucleus.   The values in brackets are estimates    
| Abrev | 
Element | 
A. Mass | 
  | 
K | 
  | 
L | 
  | 
M | 
  | 
N | 
  | 
O | 
  | 
P | 
     | 
Q | 
 
|   | 
  | 
  | 
  | 
1s | 
  | 
2s | 
2p | 
  | 
3s | 
3p | 
3d | 
  | 
4s | 
4p | 
4d | 
4f | 
  | 
5s | 
5p | 
5d | 
5g | 
  | 
6s | 
6p | 
6d | 
  | 
7s | 
 
| H | 
Hydrogen | 
1,008 | 
  | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| He | 
Helium | 
4,003 | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Li | 
Lithium | 
6,939 | 
  | 
2 | 
  | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Be | 
Beryllium | 
9,012 | 
  | 
2 | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| B | 
Boron | 
10,811 | 
  | 
2 | 
  | 
2 | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| C | 
Carbon | 
12,011 | 
  | 
2 | 
  | 
2 | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| N | 
Nitrogen | 
14,007 | 
  | 
2 | 
  | 
2 | 
3 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| O | 
Oxygen | 
15,999 | 
  | 
2 | 
  | 
2 | 
4 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| F | 
Fluorine | 
18,998 | 
  | 
2 | 
  | 
2 | 
5 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Ne | 
Neon | 
20,183 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Na | 
Sodium | 
22,990 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Mg | 
Manganese | 
24,312 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Al | 
Aluminium | 
26,982 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Si | 
Silicon | 
28,086 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| P | 
Phosphorus | 
30,974 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
3 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| S  | 
Suphur | 
32,064 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
4 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Cl | 
Chlorine | 
35,453 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
5 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Ar | 
Argon | 
39,948 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| K  | 
Potassium | 
39,102 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
  | 
  | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Ca | 
Calcium | 
40,080 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Sc | 
Scandium | 
44,956 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
1 | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Ti | 
Titanium | 
47,900 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
2 | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| V | 
Vanadium | 
50,942 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
3 | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Cr | 
Chromium | 
51,996 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
5 | 
  | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Mn  | 
Magnesium | 
54,938 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
5 | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Fe | 
Iron | 
55,847 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
6 | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Co | 
Cobalt | 
58,933 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
7 | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Ni | 
Nickel | 
58,710 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
8 | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Cu | 
Copper | 
63,540 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Zn | 
Zinc | 
65,370 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Ga | 
Gallium | 
69,720 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Ge | 
Germanium | 
72,590 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| As | 
Arsenic | 
74,922 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
3 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Se | 
Selenium | 
78,960 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
4 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Br | 
Bromine | 
79,909 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
5 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Kr | 
Krypton | 
83,800 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Rb | 
Rubidium | 
85,470 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Sr | 
Strontium | 
87,620 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Y | 
Yttrium | 
88,905 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
1 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Zr | 
Zirconium | 
91,220 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
2 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Nb | 
Niobium | 
92,906 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
4 | 
  | 
  | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Mo | 
Molybdenum | 
95,940 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
5 | 
  | 
  | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Tc | 
Technetium | 
98 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
5 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Ru | 
Ruthenium | 
101,070 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
7 | 
  | 
  | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Rh | 
Rhodium | 
102,904 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
8 | 
  | 
  | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Pd | 
Palladium | 
106, 400 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Ag | 
Silver | 
107,870 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Cd | 
Cadmium | 
112,400 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| In | 
Indium | 
114,820 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Sn | 
Tin | 
118,690 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Sb | 
Antimony | 
121,750 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
3 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Te | 
Tellurium | 
127,600 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
4 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| I  | 
Iodine | 
126,904 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
5 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Xe | 
Xenon | 
131,300 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
6 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 
| Cs | 
Caesium | 
132,905 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
6 | 
  | 
  | 
  | 
1 | 
  | 
  | 
  | 
  | 
 
| Ba | 
Barium | 
137,340 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
6 | 
  | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| La | 
Lanthanium | 
138,910 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
6 | 
1 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Ce | 
Cerium | 
140,120 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
1 | 
  | 
2 | 
6 | 
1 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Pr | 
Praseodymium | 
140,907 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
3 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Nd | 
Neodymium | 
144,240 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
4 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Pm | 
Promethium | 
(145) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
5 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Sm | 
Samarium | 
150,350 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
6 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Eu | 
Europium | 
151,960 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
7 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Gd | 
Gadolinium | 
157,250 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
7 | 
  | 
2 | 
6 | 
1 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Tb | 
Terbium | 
158,924 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
8 | 
  | 
2 | 
6 | 
1 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Dy | 
Dysprosium | 
162,500 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
10 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Ho | 
Holmium | 
164,930; | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
11 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Er | 
Erbium | 
167,260; | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
12 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Tm | 
Thulium | 
168,934 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
13 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Yb | 
Ytterbium | 
173,040; | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
  | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Lu | 
Lutetium | 
174,970 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
1 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Hf | 
Hafnium | 
178,490 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
2 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Ta | 
Tantalum | 
180,948 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
3 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| W | 
Tungsten | 
183,850 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
4 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Re | 
Rhenium | 
186,20 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
5 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Os | 
Osmium | 
190,20 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
6 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Ir | 
Iridium | 
192,20 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
7 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Pt | 
Platinum | 
195,09 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
9 | 
  | 
  | 
1 | 
  | 
  | 
  | 
  | 
 
| Au | 
Gold | 
196,967 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
1 | 
  | 
  | 
  | 
  | 
 
| Hg | 
Mercury | 
200,59 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
  | 
  | 
  | 
  | 
 
| Tl | 
Thallium | 
204,37 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
1 | 
  | 
  | 
  | 
 
| Pb | 
Lead | 
207,19 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
2 | 
  | 
  | 
  | 
 
| Bi | 
Bismuth | 
208,98 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
3 | 
  | 
  | 
  | 
 
| Po | 
Polonium | 
(209) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
4 | 
  | 
  | 
  | 
 
| At | 
Astatine | 
(210) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
5 | 
  | 
  | 
  | 
 
| Rn | 
Radon | 
(222) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
6 | 
  | 
  | 
  | 
 
| Fr | 
Francium | 
(223) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
6 | 
  | 
  | 
1 | 
 
| Ra | 
Radium | 
(226) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
6 | 
  | 
  | 
2 | 
 
| Ac  | 
Actinium | 
(227) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
6 | 
1 | 
  | 
2 | 
 
| Th | 
Thorium | 
232,038 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
  | 
2 | 
6 | 
2 | 
  | 
2 | 
 
| Pa | 
Proctactinium | 
(231) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
2 | 
  | 
2 | 
6 | 
1 | 
  | 
2 | 
 
| U | 
Uranium | 
238,03 | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
3 | 
  | 
2 | 
6 | 
1 | 
  | 
2 | 
 
| Np | 
Neptunium | 
(237) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
4 | 
  | 
2 | 
6 | 
1 | 
  | 
2 | 
 
| Pu | 
Plutonium | 
(244) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
6 | 
  | 
2 | 
6 | 
  | 
  | 
2 | 
 
| Am | 
Americium | 
(243) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
7 | 
  | 
2 | 
6 | 
  | 
  | 
2 | 
 
| Cm | 
Curium | 
(247) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
7 | 
  | 
2 | 
6 | 
1 | 
  | 
2 | 
 
| Bk | 
Berkelium | 
(247) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
9 | 
  | 
2 | 
6 | 
  | 
  | 
2 | 
 
| Cf | 
Californium | 
(251) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
10 | 
  | 
2 | 
6 | 
  | 
  | 
2 | 
 
| Es | 
Einstienium | 
(252) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
11 | 
  | 
2 | 
6 | 
  | 
  | 
2 | 
 
| Fm | 
Fermium | 
(257) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
12 | 
  | 
2 | 
6 | 
  | 
  | 
2 | 
 
| Md | 
Mendelevium | 
(258) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
13 | 
  | 
2 | 
6 | 
  | 
  | 
2 | 
 
| No | 
Nobelium | 
(259) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
   | 
  | 
2 | 
 
| Lr | 
Lawrencium | 
(260) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
1 | 
  | 
2 | 
 
| Rf | 
Rutherfordium | 
(261) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
2 | 
  | 
2 | 
 
| Db | 
Dubnium | 
(262) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
3 | 
  | 
2 | 
 
| Sg | 
Seaborgium | 
(263) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
4 | 
  | 
2 | 
 
| Bh | 
Bhorium | 
(262) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
5 | 
  | 
2 | 
 
| Hs | 
Hassium | 
(265) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
6 | 
  | 
2 | 
 
| Mt | 
Meitnerium | 
(266) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
7 | 
  | 
2 | 
 
| Uun | 
Ununnilium | 
(269) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
9 | 
  | 
1 | 
 
| Uuu | 
Ununinium | 
(272) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
1 | 
 
| Uub | 
Ununbium | 
(277) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
 
| Uut | 
no Name | 
  | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
  | 
3 | 
 
| Uuq | 
Ununquadium | 
(285) | 
  | 
2 | 
  | 
2 | 
6 | 
  | 
2 | 
6 | 
10 | 
  | 
2 | 
6 | 
10 | 
14 | 
  | 
2 | 
6 | 
10 | 
14; | 
  | 
2 | 
6 | 
10 | 
  | 
4 | 
 
 
 |