| Group | ||||
|---|---|---|---|---|
| 15 | 16 | 17 | ||
| 4 |
34
Se
Selenium
[Ar] 4s2 3d10 4p4
|
|||
| Period | 5 |
51
Sb
Antimony
[Kr] 5s2 4d10 5p3
|
52
Te
Tellurium
[Kr] 5s2 4d10 5p4
Name origin:
Earth, the third planet on solar system (with the Latin word tellus)
Atomic weight (amu):
127.6
Specific heat capacity (J/gK):
0.202
Density (g/cm3):
6.232
Melting point (K):
722.66
Boiling point (K):
1261.0
Electronegativity (Pauling):
2.1
Abundance (mg/kg):
0.001
|
53
I
Iodine
[Kr] 5s2 4d10 5p5
|
| 6 |
84
Po
Polonium
[Xe] 6s2 4f14 5d10 6p4
|
|||
Tip: Hover over an adjacent element to compare its electron configuration to that of the central element.