They are placed in the seventh electron shell.
Only two electrons in the seventh shell.
Two valence electrons.
Helium has two valence electrons. It is the only noble gas not to have eight valence electrons. Helium has the electronic configuration 1s2.The Noble gases have eight valence electrons in their outer shell.
Beryllium has two valence electrons.
Zinc has two valence electrons.
No, sulfur has six valence electrons, while magnesium has two valence electrons.
Calcium is a metal that has two valence electrons.
In a reaction u need two valence electrons to gain or share two valence electrons.
Beryllium has two valence electrons.
Calcium has a total of two valence electrons.
Beryllium has two valence electrons.
Calcium has two valence electrons.