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20 February, 01:56

Which element is most likely to gain electrons in a chemical reaction?

1) Kr

2) Br

3) Ca

4) Ba

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Answers (1)
  1. 20 February, 04:25
    0
    Option 2, Br. I'll go over why all other three options are incorrect.

    Option 1 - Krypton is a Noble gas, and so it doesn't need to accept electrons since it has an octet.

    Option 3 and 4 - Both Calcium and Barium are alkaline earth metals, and give away electrons, since they only have 2.

    -T. B.
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