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9 January, 07:14

The electron configurations of two unknown elements X and Y are shown.

X: 1s22s22p63s1

Y: 1s22s1

Which statement is most likely correct about the two elements?

A. They will react because X can give up one electron and Y needs 1 electron to become stable.

B. They will react because X and Y can share a pair of electrons to become stable.

C. They will not react because both have a complete outermost shell and are stable.

D. They will not react because both have to give up one electron to become stable.

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Answers (1)
  1. 9 January, 07:19
    0
    D.

    Explanation:

    They both have 1 electron in their valency shell so they will not react.

    They are both alkali metals: Lithium and Sodium.
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