Hydrogen
1
-1
Helium
2
0
Lithium
2
1
+1
Beryllium
2
2
+2
Boron
2
3
+3
Carbon
2
4
+- 4
Nitrogen
2
5
-3
Oxygen
2
6
-2
Fluorine
2
7
-1
Neon
2
8
0
Sodium
2
8
1
+1
Magnesium
2
8
2
+2
Aluminium
2
8
3
+3
Silicon
2
8
4
+4
Phosphorus
2
8
5
+5
Sulfur
2
8
6
+6
Chlorine
2
8
7
+7
Argon
2
8
8
+8
Potassium
2
8
9
+- 9
Calcium
2
8
10
-8
Scandium
2
8
11
-7
Titanium
2
8
12
-6
Vanadium
2
8
13
-5
Chromium
2
8
14
-4
Manganese
2
8
15
-3
Iron
2
8
16
-2
Cobalt
2
8
17
-1
Nickel
2
8
18
0
Copper
2
8
18
1
+1
Zinc
2
8
18
2
+2
Gallium
2
8
18
+3
3
Germanium
2
8
18
4
+4
Arsenic
2
8
18
5
+5
Selenium
2
8
18
6
+6
Bromine
2
8
18
7
+7
Krypton
2
8
18
8
+8
Rubidium
2
8
18
9
+9
Strontium
2
8
18
10
+10
Yttrium
2
8
18
11
+11
Zirconium
2
8
18
12
+12
Niobium
2
8
18
13
+13
Molybdenum
2
8
18
14
+14
Technetium
2
8
18
15
+15
Ruthenium
2
8
18
16
+- 16
Rhodium
2
8
18
17
-15
Palladium
2
8
18
18
-14
Silver
2
8
18
19
-13
Cadmium
2
8
18
20
-12
Indium
2
8
18
21
-11
Tin
2
8
18
22
-10
Antimony
2
8
18
23
-9
Tellurium
2
8
18
24
-8
Iodine
2
8
18
25
-7
Xenon
2
8
18
26
-6
Caesium
2
8
18
27
-5
Barium
2
8
18
28
-4
Lanthanum
2
8
18
29
-3
Cerium
2
8
18
30
-2
Praseodymium
2
8
18
31
-1
Neodymium
2
8
18
32
-18
Promethium
2
8
18
32
1
+1
Samarium
2
8
18
32
2
+2
Europium
2
8
18
32
3
+3
Gadolinium
2
8
18
32
4
+4
Terbium
2
8
18
32
5
+5
Dysprosium
2
8
18
32
6
+6
Holmium
2
8
18
32
7
+7
Erbium
2
8
18
32
8
+8
Thulium
2
8
18
32
9
+9
Ytterbium
2
8
18
32
10
+10
Lutetium
2
8
18
32
11
+11
Hafnium
2
8
18
32
12
+12
Tantalum
2
8
18
32
13
+13
Tungsten
2
8
18
32
14
+14
Rhenium
2
8
18
32
15
+15
Osmium
2
8
18
32
16
+16
Iridium
2
8
18
32
17
+17
Platinum
2
8
18
32
18
+18
Gold
2
8
18
32
19
+19
Mercury
2
8
18
32
20
+20
Thallium
2
8
18
32
21
+21
Lead
2
8
18
32
22
+22
Bismuth
2
8
18
32
23
+23
Polonium
2
8
18
32
24
+24
Astatine
2
8
18
32
25
+- 25
Radon
2
8
18
32
26
-24
Francium
2
8
18
32
27
-23
Radium
2
8
18
32
28
-22
Actinium
2
8
18
32
29
-21
Thorium
2
8
18
32
30
-20
Protactinium
2
8
18
32
31
-19
Uranium
2
8
18
32
32
-18
Neptunium
2
8
18
32
33
-17
Plutonium
2
8
18
32
34
-16
Americium
2
8
18
32
35
-15
Curium
2
8
18
32
36
-14
Berkelium
2
8
18
32
37
-13
Californium
2
8
18
32
38
-12
Einsteinium
2
8
18
32
39
-11
Fermium
2
8
18
32
40
-10
Mendelevium
2
8
18
32
41
-9
Nobelium
2
8
18
32
42
-8
Lawrencium
2
8
18
32
43
-7
Rutherfordium
2
8
18
32
44
-6
Dubnium
2
8
18
32
45
-5
Seaborgium
2
8
18
32
46
-4
Bohrium
2
8
18
32
47
-3
Hassium
2
8
18
32
48
-2
Meitnerium
2
8
18
32
49
-1
Darmstadtium
2
8
18
32
50
+- 0
Roentgenium
2
8
18
32
50
1
+1
Copernicium
2
8
18
32
50
2
+2
Ununtrium
2
8
18
32
50
3
+3
Flerovium
2
8
18
32
50
4
+4
Ununpentium
2
8
18
32
50
5
+5
Livermorium
2
8
18
32
50
6
+6
Ununseptium
2
8
18
32
50
7
+7
Ununoctium
2
8
18
32
50
8
+8