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Which species does not have the same number of electrons as neon

The same question, asked 2 times: 2 May 2023 S1, 10 May 2024 S1. Every wording below, oldest first.

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  1. Question 1

    2 May 2023 S1

    93
    Which from following species does not have number of electrons similar to other three species?

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  2. Question 2

    10 May 2024 S1

    92
    Which species is NOT isoelectronic with neon (10 e−^-)?

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