Periodic Trend: Ionic Radius Video Lessons

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Problem: What occurs when an atom of chlorine forms a chloride ion?A. The chlorine atom gains an electron, and its radius becomes smaller.B. The chlorine atom gains an electron, and its radius becomes larger.C. The chlorine atom loses an electron, and its radius becomes smaller.D. The chlorine atom loses an electron, and its radius becomes larger.

FREE Expert Solution

The more electrons that an atom/ion possess, the bigger it is.

Cations (positively charged ions) tend to be smaller than their parent atoms

            Positive charge  lost electrons

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Problem Details

What occurs when an atom of chlorine forms a chloride ion?

A. The chlorine atom gains an electron, and its radius becomes smaller.
B. The chlorine atom gains an electron, and its radius becomes larger.
C. The chlorine atom loses an electron, and its radius becomes smaller.
D. The chlorine atom loses an electron, and its radius becomes larger.

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