An ion with 9 protons and 11 electrons would have a net charge of

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Multiple Choice

An ion with 9 protons and 11 electrons would have a net charge of

The net charge comes from the balance between protons and electrons: protons are +1 each and electrons are -1 each. With 9 protons and 11 electrons, the total charge is 9*(+1) + 11*(-1) = 9 - 11 = -2. So the ion carries a negative two charge. This happens because there are two more electrons than protons, making it an anion. If there were two more protons, it would be +2; if the numbers were equal, it would be neutral; and having many more electrons would give a larger negative charge.

The net charge comes from the balance between protons and electrons: protons are +1 each and electrons are -1 each. With 9 protons and 11 electrons, the total charge is 9*(+1) + 11*(-1) = 9 - 11 = -2. So the ion carries a negative two charge. This happens because there are two more electrons than protons, making it an anion. If there were two more protons, it would be +2; if the numbers were equal, it would be neutral; and having many more electrons would give a larger negative charge.

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