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Which of the following statements is $FALSE$?

The electronic configuration $1s^{2}\, 2s^{2}\, 2p^{5}\, 3s^{1}$ represents:

Which of the following sets of quantum numbers is impossible for an electron?

Using $s$,$p$,$d$,and $f$ notations,describe the orbital with the following quantum numbers:
$(a)$ $n=1$,$l=0$
$(b)$ $n=3$,$l=1$
$(c)$ $n=4$,$l=2$
$(d)$ $n=4$,$l=3$

The electronic configuration $1s^{2}2s^{2}2p^{6}3s^{1}$ corresponds to which of the following species?

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