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5 February, 20:05

Which one (s) below right about valence electrons?

A

They are all electrons of an atom

B

The number of valence electrons in the atoms of an element determines that element's chemical properties

C

They are at the outermost shell of the atom.

D

Valence electrons have the highest energy

E

Valence electrons have the lowest energy.

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Answers (2)
  1. 5 February, 20:14
    0
    Valence electrons are in the outermost area, have the highest energy, and are all electrons of the atom. This would be A, C and D. B might be a variable, as the Alkali Metals are highly unstable.

    Electrons described by E are in Ground State.
  2. 5 February, 23:21
    0
    Answer choice A, B, and C is right about the valence electrons. For answer choice D and E, Would in it be a more of an element kind of choice. whether the element is closer to the left side of the periodic table or not determines the high and low energy.
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