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|
IA |
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|
天然放射性元素 |
非放射性元素
|
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|
1 |
H |
IIA |
|
人工放射性元素 |
|
|
IIIA |
IVA |
VA |
VIA |
VIIA |
He |
K |
|
2 |
Li |
Be |
|
|
|
|
|
|
|
B |
C |
N |
O |
F |
Ne |
L |
|
3 |
Na |
Mg |
IIB |
IVB |
VB |
VIB |
VIIB |
VIIB |
IB |
IIB |
Al |
Si |
P |
S |
Cl |
Ar |
M |
|
4 |
K |
Ca |
Sc |
Ti |
V |
Cr |
Mn |
Fe |
Co |
Ni |
Cu |
Zn |
Ga |
Ge |
As |
Se |
Br |
Kr |
N |
|
5 |
Rb |
Sr |
Y |
Zr |
Nb |
Mo |
Tc |
Ru |
Rh |
Pb |
Ag |
Cd |
In |
Sn |
Sb |
Te |
I |
Xe |
O |
|
6 |
Cs |
Ba |
La |
Hf |
Ta |
W |
Re |
Os |
Ir |
Pt |
Au |
Hg |
Tl |
Pb |
Bi |
Po |
At |
Rn |
P |
|
7 |
Fr |
Ra |
Ac |
Rf |
Db |
Sg |
Bh |
Hs |
Mt |
Uun |
Uuu |
Uub |
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|
镧系
|
La |
Ce |
Pr |
Nb |
Pm |
Sm |
Eu |
Gd |
Tb |
Dy |
Ho |
Er |
Tm |
Yb |
Lu |
|
|
|
|
锕系
|
Ac |
Th |
Pa |
U |
Np |
Pu |
Am |
Cm |
Bk |
Cf |
Es |
Fm |
Md |
No |
Lr |
|
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|
