Atomic NumberAtomic Number 99
Atomic Number 99 is belong to element of Einsteinium.
Chemical symbol for Einsteinium is Es. Number of protons in Einsteinium is 99. Atomic weight of Einsteinium is 252 u or g/mol.
99Es
Atomic Number 99 Element Properties
| Atomic Number (Z) | 99 |
|---|---|
| Atomic Symbol | Es |
| Element Name | Einsteinium |
| Group | |
| Period | 7 |
| Atomic Weight | 252 u |
| Density | 8.84 g/cm3 |
| Melting Point (K) | 1133 K |
| Boiling Point (K) | 1269 K |
List all properties of Einsteinium