A sodium atom contains 11 protons and 11 electrons. A chlorine atom contains 17 protons and 17 electrons. What must occur for a sodium atom to obtain a charge of 1+ and a chlorine atom of 1-?

Explanation:

If sodium loses an electron the sodium becomes an ion with a positive 1 charge. This is because the 11 positive protons and 10 negative electrons end up with an overall charge of +1.

A chlorine atom, contains 17 protons and 17 electrons. By adding one more electron we get a negatively charged Cl- ion with a net charge of -1.

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explanation:

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