the electronic configuration of an element T is 2,8,7. 1)what is group no. and period no. of t
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Answered by
11
Answer:
K shell- 2
L shell-8
M shell-7
Total number of electrons=2+8+7
=17
Hence the element is Chlorine
Group 17
Period 3
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Answered by
1
Answer:
atomic no- 17
atom- chlorine
period number - 3
group number - 7A
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