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Answer to Question #56201 in General Chemistry for Aleshia

Question #56201
9. True or false
(a) Effective nuclear charge decreases going down a group. __________
(b) Zeff for calcium is smaller than that of chlorine. __________
(c) Al3+ is larger than Na+ because Na+ has two extra electrons. __________
(d) Effective nuclear charge (Zeff) is the positive charge experienced by the electron from the nucleus and it increases from left to right across the period. __________
(e) Anions are larger than their parent atoms because electrons are added to the valence shell reducing the electron-electron repulsions. __________
Expert's answer
a) True

b) False

c) False

d) True

e) False

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