Answers

2015-04-27T22:00:09+05:30
(a)the electronic configuration is 1s²2s²2p⁶3s¹.
(b)the m belongs to 3 rd group.
(c)m is a metal.
(d)Nacl
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2015-04-28T08:34:55+05:30
Atomic number-11
(a) electronic configuration -- 2,8,3
(b)group -- 3rd group
(c) M is a metal
(d)formula -- sodium chloride(NaCl)
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