Q. 524.8( 5 Votes )
What is the number of valence electrons in:
(a) sodium ion, Na+
(b) oxide ion, O2-
Answer :
(a) 8 is the number of valence electrons in sodium ion, Na+ has the electronic configuration of 2, 8.
(b) 8 is the number of valence electrons in oxide ion, as O2- have the electronic configuration of 2, 8.
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