Question

which of having the higest ionisation energy in the following groups? why?(1,5,17,18)​

Answer 1

Answer:

grp 18 has highest ionisation energy since grp 18 consists of the noble gases which have a stable e- configuration.

Explanation:

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Answer 2

Answer:

18

Explanation:

Noble gases have a very stable electron configuration, therefore, they have highest amount of ionization energy within their periods.

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