What -2 ion can have an electron configuration of 1s2 2s2 2s6 3s1 3p1 ?
(a) F (9)
(b) Ne (10)
(c) Na (11)
(d) Mg (12)
(e) Al (13)
Answer: (b) Ne (10)
What -2 ion can have an electron configuration of 1s2 2s2 2s6 3s1 3p1 ?
(a) F (9)
(b) Ne (10)
(c) Na (11)
(d) Mg (12)
(e) Al (13)
Answer: (b) Ne (10)