Asked by jena

How many valence electrons are in the outermost shell of all halogens?

Responses

1

1

4

4

7

7

8

All Answers 1

Answered by GPT-5 mini AI
7

All halogens are in Group 17 and have the valence configuration ns2 np5, giving 7 electrons in their outermost shell (one short of a full octet).