Question

1. The electronic configuration of an element T is 2, 8, 8, 1.

(a) What is the group number of T?

(b) What is the period number of T?

(c) How many valence electron are there in an atom of

T?

(d) Is it a metal or non metal?
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Answer 1

Answer:

1: 17

2: 4

3:

4: metal

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Answer 2

Answer:

a)1

b)4

c)1

d)metal

Explanation:

refer classification of elements- the periodic table chapter