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← ScienceWhich outcome occurs when the effective nuclear charge decreases?
A)Atomic radius will significantly increase✓
B)Binding energy will significantly increase
C)Ionisation energy remains nearly constant
D)Nuclear stability is substantially enhanced
💡 Explanation
A decreased effective nuclear charge reduces the electrostatic attraction between the nucleus and valence electrons because shielding increases; therefore, the atomic radius increases, rather than stability increasing or binding energy increasing because weaker attraction does not facilitate nuclear interactions.
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