| Group | |||
|---|---|---|---|
| 1 | 2 | ||
| Period | 1 |
1
H
Hydrogen
1s1
Name origin:
the Greek 'hydro' and 'genes' meaning water-forming
Atomic weight (amu):
1.008
Specific heat capacity (J/gK):
14.304
Density (g/cm3):
0.00008988
Melting point (K):
14.01
Boiling point (K):
20.28
Electronegativity (Pauling):
2.2
Abundance (mg/kg):
1400.0
|
2
He
Helium
1s2
|
| 2 |
3
Li
Lithium
[He] 2s1
|
||
Tip: Hover over an adjacent element to compare its electron configuration to that of the central element.