It has 5 valence electrons since it's in Group 15 of the Periodic Table
The halogens, or inert gases, have full outer shells. Helium has 2 valence electrons in its outermost shell, and the other inert gases have eight. Wikipedia has a good entry on this: http://en.wikipedia.org/wiki/Valence_electron
A.Pentavelent. Pentavalent impurities. Impurity atoms with 5 valence electrns produce n-type semiconductors by contributing extra electrons.
It has a positive charge.
There are no valence electrons.
The valence of beryllium is two.
Indium has 3 valence electrons.
How many valence electrons do transition elements have?
Beryllium has two valence electrons.
3 valence electrons
One valence shell
Calcium has two valence electrons.
3 valence electrons