Periodic Trends - Ionic size

Which is larger:
P or P^-3

• P
• P^-3
• both are same size

Which is larger

• Na

• Na+

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Which is larger

• I

• I^-

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Which is larger

• S

• S^2-

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Which is larger

• Al

• Al³⁺

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Which of the following represents the first ionization of an alkali metal atom

• Cl → Cl⁺ + e^-

• Ca → Ca⁺ + e^-

• K → K⁺ + e^-

• H → H⁺ + e^-

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Which of the following ions is larger

• Ca²⁺

• Mg²⁺

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Which ion is larger

• Cl^-

• P^3-

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Which ion is larger

• Cu⁺

• Cu²⁺

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Why are cations larger and anions smaller than their respective atoms?

• Cations are larger than their respective atoms because of decreased electron repulsion
• Cations are larger than their respective atoms because of increased electron repulsion
• Anions are smaller than their respective atoms because of increased effective nuclear charge

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