Which of these is a model that represents valence electrons in an atom as dots around the element’s chemical symbol?

Question

Which of these is a model that
represents valence electrons in
an atom as dots around the
element’s chemical symbol?

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Mít Mít 4 years 2021-07-20T17:12:01+00:00 1 Answers 36 views 0

Answers ( )

  1. taiduc
    0
    2021-07-20T17:13:03+00:00
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    Mark Brainliest please

    Answer :

    electron dot diagram

    Explanation

    the valence electrons of an atom are the electrons located in the highest occupied principal energy level. Valence electrons are primarily responsible for the chemical properties of elements. The number of valence electrons can be easily determined from the electron configuration. Several examples from the second period elements are shown in the Table below.

    lithium 1s22s1 1 valence electron
    beryllium 1s22s2 2 valence electrons
    nitrogen 1s22s22p3 5 valence electrons

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