| 1A | 2A | 3A | 4A | 5A | 6A | 7A | 8A | ||||||||||||
| (1) | (2) | (13) | (14) | (15) | (16) | (17) | (18) | ||||||||||||
| 3B | 4B | 5B | 6B | 7B | — | 8B | — | 1B | 2B | ||||||||||
| (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | ||||||||||
| 1 |
H xx |
He xx |
|||||||||||||||||
| 2 |
Li xx |
Be xx |
B xx |
C xx |
N xx |
O xx |
F xx |
Ne xx |
|||||||||||
| 3 |
Na xx |
Mg xx |
Al xx |
Si xx |
P xx |
S xx |
Cl xx |
Ar xx |
|||||||||||
| 4 |
K xx |
Ca xx |
Sc xx |
Ti xx |
V xx |
Cr xx |
Mn xx |
Fe xx |
Co xx |
Ni xx |
Cu xx |
Zn xx |
Ga xx |
Ge xx |
As xx |
Se xx |
Br xx |
Kr xx |
|
| 5 |
Rb xx |
Sr xx |
Y xx |
Zr xx |
Nb xx |
Mo xx |
Tc xx |
Ru xx |
Rh xx |
Pd xx |
Ag xx |
Cd xx |
In xx |
Sn xx |
Sb xx |
Te xx |
I xx |
Xe xx |
|
| 6 |
Cs xx |
Ba xx |
La xx |
Hf xx |
Ta xx |
W xx |
Re xx |
Os xx |
Ir xx |
Pt xx |
Au xx |
Hg xx |
Tl xx |
Pb xx |
Bi xx |
Po xx |
At xx |
Rn xx |
|
| 7 |
Fr xx |
Ra xx |
Ac xx |
Rf xx |
Db xx |
Sg xx |
Bh xx |
Hs xx |
Mt xx |
Ds xx |
Rg xx |
Uub xx |
— |
Uuq xx |
— |
— |
— |
— |
|
| 6 |
Ce xx |
Pr xx |
Nd xx |
Pm xx |
Sm xx |
Eu xx |
Gd xx |
Tb xx |
Dy xx |
Ho xx |
Er xx |
Tm xx |
Yb xx |
Lu xx |
|||||
| 7 |
Th xx |
Pa xx |
U xx |
Np xx |
Pu xx |
Am xx |
Cm xx |
Bk xx |
Cf xx |
Es xx |
Fm xx |
Md xx |
No xx |
Lr xx |
The following charts summarize the periodic trends in atomic radius, electronegativity, ionization energy, and electron affinity. The arrows point in the direction of increasing values along groups and periods for each of the trends. (Electron affinity is shown with a dotted line, since the trends are not very smooth.)
