Symbol |
Element |
Proton no. |
R.A.M |
Group |
Electron no. |
Electron shells |
Metal,
non-metal etc. |
H |
Hydrogen |
1 |
1 |
1 |
1 |
1 |
hydrogen |
He |
Helium |
2 |
4 |
18 |
2 |
2 |
noble gas |
Li |
Lithium |
3 |
7 |
1 |
3 |
2.1 |
alkali metal |
Be |
Beryllium |
4 |
9 |
2 |
4 |
2.2 |
alkaline-earth metal |
B |
Boron |
5 |
11 |
13 |
5 |
2.3 |
semimetal |
C |
Carbon |
6 |
12 |
14 |
6 |
2.4 |
non-metal |
N |
Nitrogen |
7 |
14 |
15 |
7 |
2.5 |
non-metal |
O |
Oxygen |
8 |
16 |
16 |
8 |
2.6 |
non-metal |
F |
Fluorine |
9 |
19 |
17 |
9 |
2.7 |
halogen |
Ne |
Neon |
10 |
20 |
18 |
10 |
2.8 |
noble gas |
Na |
Sodium |
11 |
23 |
1 |
11 |
2.8.1 |
alkali metal |
Mg |
Magnesium |
12 |
24 |
2 |
12 |
2.8.2 |
alkaline-earth metal |
Al |
Aluminium |
13 |
27 |
13 |
13 |
2.8.3 |
poor metal |
Si |
Silicon |
14 |
28 |
14 |
14 |
2.8.4 |
semimetal |
P |
Phosphorus |
15 |
31 |
15 |
15 |
2.8.5 |
non-metal |
S |
Sulphur |
16 |
32 |
16 |
16 |
2.8.6 |
non-metal |
Cl |
Chlorine |
17 |
36 |
17 |
17 |
2.8.7 |
halogen |
Ar |
Argon |
18 |
40 |
18 |
18 |
2.8.8 |
noble gas |
K |
Potassium |
19 |
39 |
1 |
19 |
2.8.8.1 |
alkali metal |
Ca |
Calcium |
20 |
40 |
2 |
20 |
2.8.8.2 |
alkaline-earth metal |
Sc |
Scandium |
21 |
45 |
3 |
21 |
2.8.9.2 |
transition metal |
Ti |
Titanium |
22 |
48 |
4 |
22 |
2.8.10.2 |
transition metal |
V |
Vanadium |
23 |
51 |
5 |
23 |
2.8.11.2 |
transition metal |
Cr |
Chromium |
24 |
52 |
6 |
24 |
2.8.13.1 |
transition metal |
Mn |
Manganese |
25 |
55 |
7 |
25 |
2.8.13.2 |
transition metal |
Fe |
Iron |
26 |
56 |
8 |
26 |
2.8.14.2 |
transition metal |
Co |
Cobalt |
27 |
59 |
9 |
27 |
2.8.15.2 |
transition metal |
Ni |
Nickel |
28 |
59 |
10 |
28 |
2.8.16.2 |
transition metal |
Cu |
Copper |
29 |
63.5 |
11 |
29 |
2.8.18.1 |
transition metal |
Zn |
Zinc |
30 |
65 |
12 |
30 |
2.8.18.2 |
transition metal |
Ga |
Gallium |
31 |
70 |
13 |
31 |
2.8.18.3 |
poor metal |
Ge |
Germanium |
32 |
73 |
14 |
32 |
2.8.18.4 |
semimetal |
As |
Arsenic |
33 |
75 |
15 |
33 |
2.8.18.5 |
semimetal |
Se |
Selenium |
34 |
79 |
16 |
34 |
2.8.18.6 |
semimetal |
Br |
Bromine |
35 |
80 |
17 |
35 |
2.8.18.7 |
halogen |
Kr |
Krypton |
36 |
83 |
18 |
36 |
2.8.18.8 |
noble gas |
Rb |
Rubidium |
37 |
85 |
1 |
37 |
2.8.18.8.1 |
alkali metal |
Sr |
Strontium |
38 |
88 |
2 |
38 |
2.8.18.8.2 |
alkaline-earth metal |
Y |
Yttrium |
39 |
89 |
3 |
39 |
2.8.18.9.2 |
transition metal |
Zr |
Zirconium |
40 |
91 |
4 |
40 |
2.8.18.10.2 |
transition metal |
Nb |
Niobium |
41 |
93 |
5 |
41 |
2.8.18.12.1 |
transition metal |
Mo |
Molybdenum |
42 |
96 |
6 |
42 |
2.8.18.13.1 |
transition metal |
Tc |
Technetium |
43 |
99 |
7 |
43 |
2.8.18.14.1 |
transition metal |
Ru |
Ruthenium |
44 |
101 |
8 |
44 |
2.8.18.15.1 |
transition metal |
Rh |
Rhodium |
45 |
103 |
9 |
45 |
2.8.18.16.1 |
transition metal |
Pd |
Palladium |
46 |
106 |
10 |
46 |
2.8.18.18 |
transition metal |
Ag |
Silver |
47 |
108 |
11 |
47 |
2.8.18.18.1 |
transition metal |
Cd |
Cadmium |
48 |
112 |
12 |
48 |
2.8.18.18.2 |
transition metal |
In |
Indium |
49 |
115 |
13 |
49 |
2.8.18.18.3 |
poor metal |
Sn |
Tin |
50 |
119 |
14 |
50 |
2.8.18.18.4 |
poor metal |
Sb |
Antimony |
51 |
122 |
15 |
51 |
2.8.18.18.5 |
semimetal |
Te |
Tellurium |
52 |
128 |
16 |
52 |
2.8.18.18.6 |
semimetal |
I |
Iodine |
53 |
127 |
17 |
53 |
2.8.18.18.7 |
halogen |
Xe |
Xenon |
54 |
131 |
18 |
54 |
2.8.18.18.8 |
noble gas |
Cs |
Caesium |
55 |
133 |
1 |
55 |
2.8.18.18.8.1 |
alkali metal |
Ba |
Barium |
56 |
137 |
2 |
56 |
2.8.18.18.8.2 |
alkaline-earth metal |
La |
Lanthanum |
57 |
139 |
3 |
57 |
2.8.18.18.9.2 |
lanthanide |
Ce |
Cerium |
58 |
140 |
24 |
58 |
2.8.18.19.9.2 |
lanthanide |
Pr |
Praseodymium |
59 |
141 |
25 |
59 |
2.8.18.21.8.2 |
lanthanide |
Nd |
Neodymium |
60 |
144 |
26 |
60 |
2.8.18.22.8.2 |
lanthanide |
Pm |
Promethium |
61 |
147 |
27 |
61 |
2.8.18.23.8.2 |
lanthanide |
Sm |
Samarium |
62 |
150 |
28 |
62 |
2.8.18.24.8.2 |
lanthanide |
Eu |
Europium |
63 |
152 |
29 |
63 |
2.8.18.25.8.2 |
lanthanide |
Gd |
Gadolinium |
64 |
157 |
30 |
64 |
2.8.18.26.8.2 |
lanthanide |
Tb |
Terbium |
65 |
159 |
31 |
65 |
2.8.18.27.8.2 |
lanthanide |
Dy |
Dysprosium |
66 |
163 |
32 |
66 |
2.8.18.28.8.2 |
lanthanide |
Ho |
Holmium |
67 |
165 |
33 |
67 |
2.8.18.29.8.2 |
lanthanide |
Er |
Erbium |
68 |
167 |
34 |
68 |
2.8.18.30.8.2 |
lanthanide |
Tm |
Thulium |
69 |
169 |
35 |
69 |
2.8.18.31.8.2 |
lanthanide |
Yb |
Ytterbium |
70 |
173 |
36 |
70 |
2.8.18.32.8.2 |
lanthanide |
Lu |
Lutetium |
71 |
175 |
37 |
71 |
2.8.18.32.9.2 |
lanthanide |
Hf |
Hafnium |
72 |
178 |
4 |
72 |
2.8.18.32.10.2 |
transition metal |
Ta |
Tantalum |
73 |
181 |
5 |
73 |
2.8.18.32.11.2 |
transition metal |
W |
Tungsten |
74 |
184 |
6 |
74 |
2.8.18.32.12.2 |
transition metal |
Re |
Rhenium |
75 |
186 |
7 |
75 |
2.8.18.32.13.2 |
transition metal |
Os |
Osmium |
76 |
190 |
8 |
76 |
2.8.18.32.14.2 |
transition metal |
Ir |
Iridium |
77 |
192 |
9 |
77 |
2.8.18.32.15.2 |
transition metal |
Pt |
Platinum |
78 |
195 |
10 |
78 |
2.8.18.32.17.1 |
transition metal |
Au |
Gold |
79 |
197 |
11 |
79 |
2.8.18.32.18.1 |
transition metal |
Hg |
Mercury |
80 |
201 |
12 |
80 |
2.8.18.32.18.2 |
transition metal |
Tl |
Thallium |
81 |
204 |
13 |
81 |
2.8.18.32.18.3 |
poor metal |
Pb |
Lead |
82 |
207 |
14 |
82 |
2.8.18.32.18.4 |
poor metal |
Bi |
Bismuth |
83 |
209 |
15 |
83 |
2.8.18.32.18.5 |
poor metal |
Po |
Polonium |
84 |
210 |
16 |
84 |
2.8.18.32.18.6 |
poor metal |
At |
Astatine |
85 |
210 |
17 |
85 |
2.8.18.32.18.7 |
halogen |
Rn |
Radon |
86 |
222 |
18 |
86 |
2.8.18.32.18.8 |
noble gas |
Fr |
Francium |
87 |
223 |
1 |
87 |
2.8.18.32.18.8.1 |
alkali metal |
Ra |
Radium |
88 |
226 |
2 |
88 |
2.8.18.32.18.8.2 |
alkaline-earth metal |
Ac |
Actinium |
89 |
224 |
3 |
89 |
2.8.18.32.18.9.2 |
actinide |
Th |
Thorium |
90 |
232 |
24 |
90 |
2.8.18.32.18.10.2 |
actinide |
Pa |
Protactinium |
91 |
231 |
25 |
91 |
2.8.18.32.20.9.2 |
actinide |
U |
Uranium |
92 |
238 |
26 |
92 |
2.8.18.32.21.9.2 |
actinide |
Np |
Neptunium |
93 |
237 |
27 |
93 |
2.8.18.32.22.9.2 |
actinide |
Pu |
Plutonium |
94 |
239 |
28 |
94 |
2.8.18.32.24.8.2 |
actinide |
Am |
Americium |
95 |
241 |
29 |
95 |
2.8.18.32.25.8.2 |
actinide |
Cm |
Curium |
96 |
247 |
30 |
96 |
2.8.18.32.25.9.2 |
actinide |
Bk |
Berkelium |
97 |
249 |
31 |
97 |
2.8.18.32.27.8.2 |
actinide |
Cf |
Californium |
98 |
251 |
32 |
98 |
2.8.18.32.28.8.2 |
actinide |
Es |
Einsteinium |
99 |
254 |
33 |
99 |
2.8.18.32.29.8.2 |
actinide |
Fm |
Fermium |
100 |
257 |
34 |
100 |
2.8.18.32.30.8.2 |
actinide |
Md |
Mendelevium |
101 |
258 |
35 |
101 |
2.8.18.32.31.8.2 |
actinide |
No |
Nobelium |
102 |
255 |
36 |
102 |
2.8.18.32.32.8.2 |
actinide |
Lr |
Lawrencium |
103 |
262 |
37 |
103 |
2.8.18.32.32.9.2 |
actinide |
Rf |
Rutherfordium |
104 |
261 |
4 |
104 |
2.8.18.32.32.10.2 |
transition metal |
Db |
Dubnium |
105 |
262 |
5 |
105 |
2.8.18.32.32.11.2 |
transition metal |
Sg |
Seaborgium |
106 |
263 |
6 |
106 |
2.8.18.32.32.12.2 |
transition metal |
Bh |
Bohrium |
107 |
262 |
7 |
107 |
2.8.18.32.32.13.2 |
transition metal |
Hs |
Hassium |
108 |
265 |
8 |
108 |
2.8.18.32.32.14.2 |
transition metal |
Mt |
Meitnerium |
109 |
266 |
9 |
109 |
2.8.18.32.32.15.2 |
transition metal |
Uun |
Ununnilium |
110 |
unknown |
10 |
110 |
2.8.18.32.32.17.1 |
transition metal |
Uuu |
Unununium |
111 |
unknown |
11 |
111 |
2.8.18.32.32.18.1 |
transition metal |
Uub |
Ununbium |
112 |
unknown |
12 |
112 |
2.8.18.32.32.18.2 |
transition metal |
Uut |
Ununtrium |
113 |
unknown |
13 |
113 |
2.8.18.32.32.18.3 |
poor metal |
Uuq |
Ununquadium |
114 |
unknown |
14 |
114 |
2.8.18.32.32.18.4 |
poor metal |
|
|
115 |
unknown |
15 |
115 |
2.8.18.32.32.18.5 |
poor metal |
Uuh |
Ununhexium |
116 |
unknown |
16 |
116 |
2.8.18.32.32.18.6 |
poor metal |
Uus |
Ununseptium |
117 |
unknown |
17 |
117 |
2.8.18.32.32.18.7 |
halogen |
Uuo |
Ununoctium |
118 |
unknown |
18 |
118 |
2.8.18.32.32.18.8 |
noble gas |
|
|
|
|
|
|
|
|