Problem: In what respect does an atom of magnesium, Mg, differ from a magnesium ion, Mg2+?(A) The ion has two or more planetary electrons than the atom.(B) The ion has two more protons than the atom.(C) The ion has an inert gas electron configuration; the atom does not.(D) The positive charge on the nucleus of the ion is two units greater than the nuclear charge on the atom.

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In what respect does an atom of magnesium, Mg, differ from a magnesium ion, Mg2+?

(A) The ion has two or more planetary electrons than the atom.

(B) The ion has two more protons than the atom.

(C) The ion has an inert gas electron configuration; the atom does not.

(D) The positive charge on the nucleus of the ion is two units greater than the nuclear charge on the atom.

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