What is the number of valence electrons in oxide ion (O2-) (atomic no of O=8)
No.of valence electrons are 8.I will explain how to find it.
Atomic no.of oxygen is 8.So electronic configuration is 2,6.In the case of oxide ion there is a gain in two more electrons.(o^2-)
So the valence shell will have 6+2=8 electrons in the case of oxide ion.
Hence valence electrons of oxide ion is 8.
Atomic no.of oxygen is 8.So electronic configuration is 2,6.In the case of oxide ion there is a gain in two more electrons.(o^2-)
So the valence shell will have 6+2=8 electrons in the case of oxide ion.
Hence valence electrons of oxide ion is 8.