Beryllium has one valence shell containing two electrons.
The valence of beryllium is two.
Beryllium has two valence electrons.
Beryllium has two valence electrons.
Beryllium has two electron shells.
Beryllium has one outer electron shell with two electrons.
Two energy shells. Made up as 1s2, 2s2 Shells 1 & 2 each have only 's' orbital and each orbital has only two electrons in it. The outer shell '2' is more energetic. The electrons are paired and spin in opposite directions to each other.
Beryllium has two valence electrons.
The beryllium atom has 4 electrons and the valence is 2.
2
The valence level of beryllium is 2. This means that in its neutral state, beryllium has 2 valence electrons.
2
Radium has seven electron shells; the valence of radium is 2+.