Atoms of the most reactive elements tend to have

Answer choices:

A. one or seven valence electrons

B. eight valence electrons

C. four or five valence electrons

D. no valence electrons.

The answer is most likely A. one or seven valence electrons

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

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