Which electron shell contains the valence electrons of a radium atom in the ground state?

1. the sixth shell 2. the second shell 3. the seventh shell 4. the eighteenth shell

Question

Regan

12 April, 18:15

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Answers (1)

Know the Answer?

Shea Hebert · Answer 1

I think the answer is the seventh since the valence electron configuration is [Rn]7s^2.

Which electron shell contains the valence electrons of a radium atom in the ground state?1. the sixth shell 2. the second shell 3. the seventh shell 4. the eighteenth shell