Z |
Symbol |
Element |
Protons |
Neutrons |
Nucleons |
R.A.M |
Metal, non-metal etc. |
Group |
Electron shells |
Block |
Electron subshells |
1 |
H |
Hydrogen |
1 |
0 |
1 |
1.0
|
hydrogen |
01 |
1 |
s |
1s1 |
2 |
He |
Helium |
2 |
2 |
4 |
4.0
|
noble gas |
18 |
2 |
p |
1s2 |
3 |
Li |
Lithium |
3 |
4 |
7 |
6.9 |
alkali metal |
01 |
2.1 |
s |
[He] 2s1 |
4 |
Be |
Beryllium |
4 |
5 |
9 |
9.0
|
alkaline-earth metal |
02 |
2.2 |
s |
[He] 2s2 |
5 |
B |
Boron |
5 |
6 |
11 |
10.8 |
semimetal |
13 |
2.3 |
p |
[He] 2s22p1 |
6 |
C |
Carbon |
6 |
6 |
12 |
12.0
|
non-metal |
14 |
2.4 |
p |
[He] 2s22p2 |
7 |
N |
Nitrogen |
7 |
7 |
14 |
14.0
|
non-metal |
15 |
2.5 |
p |
[He] 2s22p3 |
8 |
O |
Oxygen |
8 |
8 |
16 |
16.0
|
non-metal |
16 |
2.6 |
p |
[He] 2s22p4 |
9 |
F |
Fluorine |
9 |
10 |
19 |
19.0
|
non-metal |
17 |
2.7 |
p |
[He] 2s22p5 |
10 |
Ne |
Neon |
10 |
10 |
20 |
20.1 |
noble gas |
18 |
2.8 |
p |
[He] 2s22p6 |
11 |
Na |
Sodium |
11 |
12 |
23 |
23.0
|
alkali metal |
01 |
2.8.1 |
s |
[Ne] 3s1 |
12 |
Mg |
Magnesium |
12 |
12 |
24 |
24.3 |
alkaline-earth metal |
02 |
2.8.2 |
s |
[Ne] 3s2 |
13 |
Al |
Aluminium |
13 |
14 |
27 |
27.0
|
poor metal |
13 |
2.8.3 |
p |
[Ne] 3s23p1 |
14 |
Si |
Silicon |
14 |
14 |
28 |
28.1 |
semimetal |
14 |
2.8.4 |
p |
[Ne] 3s23p2 |
15 |
P |
Phosphorus |
15 |
16 |
31 |
31.0
|
non-metal |
15 |
2.8.5 |
p |
[Ne] 3s23p3 |
16 |
S |
Sulphur |
16 |
16 |
32 |
32.1 |
non-metal |
16 |
2.8.6 |
p |
[Ne] 3s23p4 |
17 |
Cl |
Chlorine |
17 |
18 |
35 |
35.5 |
non-metal |
17 |
2.8.7 |
p |
[Ne] 3s23p5 |
18 |
Ar |
Argon |
18 |
22 |
40 |
40.0
|
noble gas |
18 |
2.8.8 |
p |
[Ne] 3s23p6 |
19 |
K |
Potassium |
19 |
20 |
39 |
39.1 |
alkali metal |
01 |
2.8.8.1 |
s |
[Ar] 4s1 |
20 |
Ca |
Calcium |
20 |
20 |
40 |
40.1 |
alkaline-earth metal |
02 |
2.8.8.2 |
s |
[Ar] 4s2 |
21 |
Sc |
Scandium |
21 |
24 |
45 |
45.0
|
transition metal |
03 |
2.8.9.2 |
d |
[Ar] 3d14s2 |
22 |
Ti |
Titanium |
22 |
26 |
48 |
47.9 |
transition metal |
04 |
2.8.10.2 |
d |
[Ar] 3d24s2 |
23 |
V |
Vanadium |
23 |
28 |
51 |
50.9 |
transition metal |
05 |
2.8.11.2 |
d |
[Ar] 3d34s2 |
24 |
Cr |
Chromium |
24 |
28 |
52 |
52.0
|
transition metal |
06 |
2.8.13.1 |
d |
[Ar] 3d54s1 |
25 |
Mn |
Manganese |
25 |
30 |
55 |
54.9 |
transition metal |
07 |
2.8.13.2 |
d |
[Ar] 3d54s2 |
26 |
Fe |
Iron |
26 |
30 |
56 |
55.9 |
transition metal |
08 |
2.8.14.2 |
d |
[Ar] 3d64s2 |
27 |
Co |
Cobalt |
27 |
32 |
59 |
58.9 |
transition metal |
09 |
2.8.15.2 |
d |
[Ar] 3d74s2 |
28 |
Ni |
Nickel |
28 |
30 |
58 |
58.7 |
transition metal |
10 |
2.8.16.2 |
d |
[Ar] 3d84s2 |
29 |
Cu |
Copper |
29 |
34 |
63 |
63.6 |
transition metal |
11 |
2.8.18.1 |
d |
[Ar] 3d104s1 |
30 |
Zn |
Zinc |
30 |
34 |
64 |
65.4 |
transition metal |
12 |
2.8.18.2 |
d |
[Ar] 3d104s2 |
31 |
Ga |
Gallium |
31 |
38 |
69 |
69.7 |
poor metal |
13 |
2.8.18.3 |
p |
[Ar] 3d104s24p1 |
32 |
Ge |
Germanium |
32 |
42 |
74 |
72.6 |
semimetal |
14 |
2.8.18.4 |
p |
[Ar] 3d104s24p2 |
33 |
As |
Arsenic |
33 |
42 |
75 |
74.9 |
semimetal |
15 |
2.8.18.5 |
p |
[Ar] 3d104s24p3 |
34 |
Se |
Selenium |
34 |
46 |
80 |
79.0 |
semimetal |
16 |
2.8.18.6 |
p |
[Ar] 3d104s24p4 |
35 |
Br |
Bromine |
35 |
44 |
79 |
79.9 |
non-metal |
17 |
2.8.18.7 |
p |
[Ar] 3d104s24p5 |
36 |
Kr |
Krypton |
36 |
48 |
84 |
83.3 |
noble gas |
18 |
2.8.18.8 |
p |
[Ar] 3d104s24p6 |
37 |
Rb |
Rubidium |
37 |
48 |
85 |
85.5 |
alkali metal |
01 |
2.8.18.8.1 |
s |
[Kr] 5s1 |
38 |
Sr |
Strontium |
38 |
50 |
88 |
87.6 |
alkaline-earth metal |
02 |
2.8.18.8.2 |
s |
[Kr] 5s2 |
39 |
Y |
Yttrium |
39 |
50 |
89 |
88.9 |
transition metal |
03 |
2.8.18.9.2 |
d |
[Kr] 4d15s2 |
40 |
Zr |
Zirconium |
40 |
50 |
90 |
91.2 |
transition metal |
04 |
2.8.18.10.2 |
d |
[Kr] 4d25s2 |
41 |
Nb |
Niobium |
41 |
52 |
93 |
92.9 |
transition metal |
05 |
2.8.18.12.1 |
d |
[Kr] 4d45s1 |
42 |
Mo |
Molybdenum |
42 |
56 |
98 |
95.9 |
transition metal |
06 |
2.8.18.13.1 |
d |
[Kr] 4d55s1 |
43 |
Tc |
Technetium |
43 |
54 |
97 |
98.9 |
transition metal |
07 |
2.8.18.14.1 |
d |
[Kr] 4d65s1 |
44 |
Ru |
Ruthenium |
44 |
58 |
102 |
101.1 |
transition metal |
08 |
2.8.18.15.1 |
d |
[Kr] 4d75s1 |
45 |
Rh |
Rhodium |
45 |
58 |
103 |
102.9 |
transition metal |
09 |
2.8.18.16.1 |
d |
[Kr] 4d85s1 |
46 |
Pd |
Palladium |
46 |
60 |
106 |
106.4 |
transition metal |
10 |
2.8.18.18 |
d |
[Kr] 4d10 |
47 |
Ag |
Silver |
47 |
60 |
107 |
107.9 |
transition metal |
11 |
2.8.18.18.1 |
d |
[Kr] 4d105s1 |
48 |
Cd |
Cadmium |
48 |
66 |
114 |
112.4 |
transition metal |
12 |
2.8.18.18.2 |
d |
[Kr] 4d105s2 |
49 |
In |
Indium |
49 |
66 |
115 |
114.8 |
poor metal |
13 |
2.8.18.18.3 |
p |
[Kr] 4d105s25p1 |
50 |
Sn |
Tin |
50 |
70 |
120 |
118.7 |
poor metal |
14 |
2.8.18.18.4 |
p |
[Kr] 4d105s25p2 |
51 |
Sb |
Antimony |
51 |
70 |
121 |
121.8 |
semimetal |
15 |
2.8.18.18.5 |
p |
[Kr] 4d105s25p3 |
52 |
Te |
Tellurium |
52 |
78 |
130 |
127.6 |
semimetal |
16 |
2.8.18.18.6 |
p |
[Kr] 4d105s25p4 |
53 |
I |
Iodine |
53 |
74 |
127 |
126.9 |
non-metal |
17 |
2.8.18.18.7 |
p |
[Kr] 4d105s25p5 |
54 |
Xe |
Xenon |
54 |
78 |
132 |
131.3 |
noble gas |
18 |
2.8.18.18.8 |
p |
[Kr] 4d105s25p6 |
55 |
Cs |
Caesium |
55 |
78 |
133 |
132.9 |
alkali metal |
01 |
2.8.18.18.8.1 |
s |
[Xe] 6s1 |
56 |
Ba |
Barium |
56 |
82 |
138 |
137.3 |
alkaline-earth metal |
02 |
2.8.18.18.8.2 |
s |
[Xe] 6s2 |
57 |
La |
Lanthanum |
57 |
82 |
139 |
138.9 |
lanthanide |
03 |
2.8.18.18.9.2 |
f |
[Xe] 4 f0 . 5 d1 . 6 s2 |
58 |
Ce |
Cerium |
58 |
82 |
140 |
140.1 |
lanthanide |
24 |
2.8.18.19.9.2 |
f |
[Xe] 5 d1 f1 . 6 s2 |
59 |
Pr |
Praseodymium |
59 |
82 |
141 |
140.9 |
lanthanide |
25 |
2.8.18.21.8.2 |
f |
[Xe] 5 d0 f3 . 6 s2 |
60 |
Nd |
Neodymium |
60 |
82 |
142 |
144.2 |
lanthanide |
26 |
2.8.18.22.8.2 |
f |
[Xe] 5 d0 f4 . 6 s2 |
61 |
Pm |
Promethium |
61 |
84 |
145 |
146.9 |
lanthanide |
27 |
2.8.18.23.8.2 |
f |
[Xe] 5 d0 f5 . 6 s2 |
62 |
Sm |
Samarium |
62 |
90 |
152 |
150.4 |
lanthanide |
28 |
2.8.18.24.8.2 |
f |
[Xe] 5 d0 f6 . 6 s2 |
63 |
Eu |
Europium |
63 |
90 |
153 |
152.0 |
lanthanide |
29 |
2.8.18.25.8.2 |
f |
[Xe] 5 d0 f7 . 6 s2 |
64 |
Gd |
Gadolinium |
64 |
94 |
158 |
157.3 |
lanthanide |
30 |
2.8.18.26.8.2 |
f |
[Xe] 5 d0 f8 . 6 s2 |
65 |
Tb |
Terbium |
65 |
94 |
159 |
158.9 |
lanthanide |
31 |
2.8.18.27.8.2 |
f |
[Xe] 5 d0 f9 . 6 s2 |
66 |
Dy |
Dysprosium |
66 |
98 |
164 |
162.5 |
lanthanide |
32 |
2.8.18.28.8.2 |
f |
[Xe] 5 d0 f10 . 6 s2 |
67 |
Ho |
Holmium |
67 |
98 |
165 |
164.9 |
lanthanide |
33 |
2.8.18.29.8.2 |
f |
[Xe] 5 d0 f11 . 6 s2 |
68 |
Er |
Erbium |
68 |
100 |
168 |
167.3 |
lanthanide |
34 |
2.8.18.30.8.2 |
f |
[Xe] 5 d0 f12 . 6 s2 |
69 |
Tm |
Thulium |
69 |
100 |
169 |
168.9 |
lanthanide |
35 |
2.8.18.31.8.2 |
f |
[Xe] 5 d0 f13 . 6 s2 |
70 |
Yb |
Ytterbium |
70 |
104 |
174 |
173.0 |
lanthanide |
36 |
2.8.18.32.8.2 |
f |
[Xe] 5 d0 f14 . 6 s2 |
71 |
Lu |
Lutetium |
71 |
104 |
175 |
175.0 |
lanthanide |
37 |
2.8.18.32.9.2 |
d |
[Xe] 5 d1 f14 . 6 s2 |
72 |
Hf |
Hafnium |
72 |
108 |
180 |
178.5 |
transition metal |
04 |
2.8.18.32.10.2 |
d |
[Xe] 5 d2 f14 . 6 s2 |
73 |
Ta |
Tantalum |
73 |
108 |
181 |
181.0 |
transition metal |
05 |
2.8.18.32.11.2 |
d |
[Xe] 5 d3 f14 . 6 s2 |
74 |
W |
Tungsten |
74 |
110 |
184 |
183.9 |
transition metal |
06 |
2.8.18.32.12.2 |
d |
[Xe] 5 d4 f14 . 6 s2 |
75 |
Re |
Rhenium |
75 |
112 |
187 |
186.2 |
transition metal |
07 |
2.8.18.32.13.2 |
d |
[Xe] 5 d5 f14 . 6 s2 |
76 |
Os |
Osmium |
76 |
116 |
192 |
190.2 |
transition metal |
08 |
2.8.18.32.14.2 |
d |
[Xe] 5 d6 f14 . 6 s2 |
77 |
Ir |
Iridium |
77 |
116 |
193 |
192.2 |
transition metal |
09 |
2.8.18.32.15.2 |
d |
[Xe] 5 d7 f14 . 6 s2 |
78 |
Pt |
Platinum |
78 |
117 |
195 |
195.1 |
transition metal |
10 |
2.8.18.32.17.1 |
d |
[Xe] 5 d9 f14 . 6 s1 |
79 |
Au |
Gold |
79 |
118 |
197 |
197.0 |
transition metal |
11 |
2.8.18.32.18.1 |
d |
[Xe] 5 d10 f14 . 6 s1 |
80 |
Hg |
Mercury |
80 |
122 |
202 |
200.6 |
transition metal |
12 |
2.8.18.32.18.2 |
d |
[Xe] 5 d10 f14 . 6 s2 |
81 |
Tl |
Thallium |
81 |
124 |
205 |
204.4 |
poor metal |
13 |
2.8.18.32.18.3 |
p |
[Xe] 5 d10 f14 . 6 s2 p1 |
82 |
Pb |
Lead |
82 |
126 |
208 |
207.2 |
poor metal |
14 |
2.8.18.32.18.4 |
p |
[Xe] 5 d10 f14 . 6 s2 p2 |
83 |
Bi |
Bismuth |
83 |
126 |
209 |
209.0 |
poor metal |
15 |
2.8.18.32.18.5 |
p |
[Xe] 5 d10 f14 . 6 s2 p3 |
84 |
Po |
Polonium |
84 |
125 |
209 |
210.0
|
poor metal |
16 |
2.8.18.32.18.6 |
p |
[Xe] 5 d10 f14 . 6 s2 p4 |
85 |
At |
Astatine |
85 |
125 |
210 |
210.0
|
non-metal |
17 |
2.8.18.32.18.7 |
p |
[Xe] 5 d10 f14 . 6 s2 p5 |
86 |
Rn |
Radon |
86 |
136 |
222 |
222.0
|
noble gas |
18 |
2.8.18.32.18.8 |
p |
[Xe] 5 d10 f14 . 6 s2 p6 |
87 |
Fr |
Francium |
87 |
136 |
223 |
223.0
|
alkali metal |
01 |
2.8.18.32.18.8.1 |
s |
|
88 |
Ra |
Radium |
88 |
138 |
226 |
226.0 |
alkaline-earth metal |
02 |
2.8.18.32.18.8.2 |
s |
|
89 |
Ac |
Actinium |
89 |
138 |
227 |
224.0 |
actinide |
03 |
2.8.18.32.18.9.2 |
f |
|
90 |
Th |
Thorium |
90 |
142 |
232 |
232.0 |
actinide |
24 |
2.8.18.32.18.10.2 |
f |
|
91 |
Pa |
Protactinium |
91 |
140 |
231 |
231.0 |
actinide |
25 |
2.8.18.32.20.9.2 |
f |
|
92 |
U |
Uranium |
92 |
146 |
238 |
238.0 |
actinide |
26 |
2.8.18.32.21.9.2 |
f |
|
93 |
Np |
Neptunium |
93 |
144 |
237 |
237.1 |
actinide |
27 |
2.8.18.32.22.9.2 |
f |
|
94 |
Pu |
Plutonium |
94 |
150 |
244 |
239.1 |
actinide |
28 |
2.8.18.32.24.8.2 |
f |
|
95 |
Am |
Americium |
95 |
148 |
243 |
241.1 |
actinide |
29 |
2.8.18.32.25.8.2 |
f |
|
96 |
Cm |
Curium |
96 |
151 |
247 |
247.1 |
actinide |
30 |
2.8.18.32.25.9.2 |
f |
|
97 |
Bk |
Berkelium |
97 |
150 |
247 |
249.1 |
actinide |
31 |
2.8.18.32.27.8.2 |
f |
|
98 |
Cf |
Californium |
98 |
153 |
251 |
251.1 |
actinide |
32 |
2.8.18.32.28.8.2 |
f |
|
99 |
Es |
Einsteinium |
99 |
155 |
254 |
254.1 |
actinide |
33 |
2.8.18.32.29.8.2 |
f |
|
100 |
Fm |
Fermium |
100 |
157 |
257 |
257.1 |
actinide |
34 |
2.8.18.32.30.8.2 |
f |
|
101 |
Md |
Mendelevium |
101 |
157 |
258 |
258.1 |
actinide |
35 |
2.8.18.32.31.8.2 |
f |
|
102 |
No |
Nobelium |
102 |
153 |
255 |
255.0
|
actinide |
36 |
2.8.18.32.32.8.2 |
f |
|
103 |
Lr |
Lawrencium |
103 |
153 |
256 |
262.1 |
actinide |
37 |
2.8.18.32.32.9.2 |
f |
|
104 |
Rf |
Rutherfordium |
104 |
156 |
260 |
261.1 |
transition metal |
04 |
2.8.18.32.32.10.2 |
d |
|
105 |
Db |
Dubnium |
105 |
157 |
262 |
262.1 |
transition metal |
05 |
2.8.18.32.32.11.2 |
d |
|
106 |
Sg |
Seaborgium |
106 |
157 |
263 |
263.1 |
transition metal |
06 |
2.8.18.32.32.12.2 |
d |
|
107 |
Bh |
Bohrium |
107 |
155 |
262 |
262.1 |
transition metal |
07 |
2.8.18.32.32.13.2 |
d |
|
108 |
Hs |
Hassium |
108 |
157 |
265 |
265.0
|
transition metal |
08 |
2.8.18.32.32.14.2 |
d |
|
109 |
Mt |
Meitnerium |
109 |
157 |
266 |
266.0
|
transition metal |
09 |
2.8.18.32.32.15.2 |
d |
|
110 |
Uun |
Ununnilium |
110 |
unknown |
unknown |
unknown |
transition metal |
10 |
2.8.18.32.32.17.1 |
d |
|
111 |
Uuu |
Unununium |
111 |
unknown |
unknown |
unknown |
transition metal |
11 |
2.8.18.32.32.18.1 |
d |
|
112 |
Uub |
Ununbium |
112 |
unknown |
unknown |
unknown |
transition metal |
12 |
2.8.18.32.32.18.2 |
d |
|
113 |
Uut |
Ununtrium |
113 |
unknown |
unknown |
unknown |
poor metal |
13 |
2.8.18.32.32.18.3 |
p |
|
114 |
Uuq |
Ununquadium |
114 |
unknown |
unknown |
unknown |
poor metal |
14 |
2.8.18.32.32.18.4 |
p |
|
115 |
|
|
115 |
unknown |
unknown |
unknown |
poor metal |
15 |
2.8.18.32.32.18.5 |
p |
|
116 |
Uuh |
Ununhexium |
116 |
unknown |
unknown |
unknown |
poor metal |
16 |
2.8.18.32.32.18.6 |
p |
|
117 |
|
|
117 |
unknown |
unknown |
unknown |
non-metal |
17 |
2.8.18.32.32.18.7 |
p |
|
118 |
Uuo |
Ununoctium |
118 |
unknown |
unknown |
unknown |
noble gas |
18 |
2.8.18.32.32.18.8 |
p |
|
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