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Which of the following statements about the effective nuclear charge (zeff) is correct?
a.
zeff increases across a period and is relatively constant down a group.
b.
zeff decreases across a period and increases down a group.
c.
zeff increases with the size of the atom.
d.
zeff increases as the value of the principal quantum number increases.
e.
zeff is greater for hydrogen than for any other element.
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Which of the following statements about the effective nuclear charge (zeff) is correct?
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