Question

Write the electronic configuration of element T of atomic no = 17 and atomic mass of = 35
(i)What is the group number of T?
(ii)What is the period number of T?
(iii)What is the valency of T?
(iv)Whether T is a metal or non-metal?
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Answer 1

Answer:

The name of the element is Chlorine

1) Electronic configuration of Chlorine is 2,8,7

2) Group no. of Chlorine is 17

3) periodic number of Chlorine is 3

4) Valency of Chlorine is -1 as it accepts one electron

5) Chlorine is non- metal