Use the periodic table to determine the number of valence electrons in the element Calcium (Ca). How many electrons will calcium gain or los

Question

Use the periodic table to determine the number of valence electrons in the element Calcium (Ca). How many electrons will calcium gain or lose when it forms an ionic bond? Explain.

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Dulcie 7 months 2021-07-25T03:45:57+00:00 2 Answers 10 views 0

Answers ( )

  1. linhdan
    0
    2021-07-25T03:47:01+00:00
    Reply

    Answer:

    An calcium cation,

    20

    Ca

    2

    +

    , has 18 electrons with an electron

    configuration of

    1s

    2

    2s

    2

    2p

    6

    3s

    2

    3p

    6

    .

    A neutral argon atom,

    18

    Ar

    , has 18 electrons with an electron

    configuration of

    1s

    2

    2s

    2

    2p

    6

    3s

    2

    3p

    6

    , the same as a

    Ca

    2

    +

    cation.

    Explanation:

  2. Farah
    0
    2021-07-25T03:47:29+00:00
    Reply

    Calcium would lose 2 electrons when forming an ionic bond, so it’s new electron configuration would be 2-8-8. it loses 2 because it’s closer to having a full valence shell by losing the 2

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )