Advanced Placement Chemistry 1997 Free Response Questions

6) Explain each of the following obsevations using principles of atomic structure and/or bonding.

a) Potassium has a lower first-ionization energy than lithium.

b) The ionic radius of N^3- is larger than that of O^2-.

c) A calcium atom is larger than a zinc atom.

d) Boron has a lower first-ionization energy than beryllium.

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