Question

i Valency of halogens is
ii. Horizontal rows in a periodic table are called​

Answer 1

Answer 1. valency of halogens is 1

2. horizontal rows in a periodic table are called periods.

Explanation:

Answer 2

Answer:

The valency of the elements of halogens group is 1, as they need only 1 electron to complete there octet.

Horizontal rows in a periodic table are called periods.

Explanation:

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