the subshell electronic configuration of an element is 1s2 2s2 2p6 3s2
a. write the atomic no of this element
b. identify the block group and period of this element
Answers
Answered by
1
Answer:
(Na,) Sodium
Explanation:
Group=1
Period=3
Answered by
12
Answer:
(Na) sodium
Group =1
period=3
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