Question

II
Answer any One of the following questions
Write down the characteristics of the Elements having atomic Number 17
4
E.C
Period Number
Group Number
Element family
No.of valence electrons
Valency
Metal (or) Non Metal​

Answer 1

Explanation:

Characteristics:

1. It is called as halogen

2. It belongs to group number 17 and period number 3.

3.Number of valence electrons are 7.

4. It is a non metal

The electronic configuration of this element is:

2,8,7

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