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17. . Which of the following increases with increasing atomic number in Group 2A? (A) atomic radius (B) electron affinity (C) first ionization energy (D) number of outermost ele…

17. . Which of the following increases with increasing atomic number in Group 2A? (A) atomic radius (B) electron affinity (C) first ionization energy (D) number of outermost ele…
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17. . Which of the following increases with increasing atomic number in Group 2A? (A) atomic radius (B) electron affinity (C) first ionization energy (D) number of outermost electrons

User Blahblahblah
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Atomic radius, as the higher atomic numbers in 2A will have more electron energy levels, making them bigger.
User PanchaGil
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