3 years ago

Explain why neon is monatomic but chlorine is diatomic.

Chemistry

2 answers:

Elza [17]3 years ago

5 0

Chlorine is a halogen and all halogens and oxygen, nitrogen and hydrogen are diatomics

kirza4 [7]3 years ago

4 0

Explanation:

Neon is in group 8/0, which means that it has a full outer shell. Atoms react to get a full outer shell but as neon already has a full outer shell, it doesn't react and stays monatomic.

However, chlorine is in group 7, so it needs 1 more electron to complete its outer shell, two chlorine atom share one electron each with each other so they have full outer shells. This is why chlorine is diatomic.

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