chemistry

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For each, give the total number of electrons, the number of valence electrons, and the number of the energy level that holds the valence electrons.

Br-35 electrons--7 valence--4th level
Kr-36 electrons--8 valence--4th level
As-33 electrons--5 valence--4th level
I-53 electrons--7 valence--5th level

  • chemistry -

    These look ok to me.

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