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Multiple choice

Which of the following transition metal ions does not have any unpaired electrons?

  1. Sc2+

  2. Fe2+

  3. Co2+

  4. Ni2+

  5. Zn2+

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Zn2+ does not have any unpaired electrons. Zn2+: [Ar] 3d10; 0 unpaired electrons

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