Compare Elements
Select up to 4 elements to compare their properties side by side.
H
Hydrogen
#1 · Reactive Nonmetal
| Mass | 1.008 u |
| Density | 0.00008988 g/cm³ |
| Melting | 14.01 K |
| Boiling | 20.28 K |
| Electronegativity | 2.2 |
| Ionization Energy | 1312.0 kJ/mol |
| Atomic Radius | 25.0 pm |
| Block | s-block |
| State (RT) | Gas |
| Config | 1s1 |