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What occurs when an atom loses an electron?

The atom's radius decreases and the atom becomes a positive ion.
The atom's radius increases and the atom becomes a negative ion.
The atom's radius decreases and the atom becomes a negative ion.
The atom's radius increases and the atom becomes a positive ion.

Correct Answer: The atom's radius decreases and the atom becomes a positive ion.

Explanation:

When an atom loses an electron it becomes a positive ion by acquiring negatively charged. When it loses electron, the atom's radius also decreased.

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