Be (Beryllium) is an element with position number 4
in the periodic table.
Located in the II
period. Melting point
: 1278 ℃. Density
: 1.85 g/cm3
Electronic configuration of the Beryllium atom:
Reduced electronic configuration Be:
Below is the electronic diagram of the Beryllium atom
Distribution of electrons over energy levels in the Be atom
1-st level (K): 2
2-st level (L): 2
Valence electrons of Beryllium
The number of valence electrons in a Beryllium atom - 2.
Below are their quantum numbers (N - energy, L - angular momentum, M - magnetic moment, S - spin )
Oxidation states of Beryllium: +1, +2