\( 0.1 \mathrm{~g} \) of an element contains \( 4.39 \times 10^{20}...

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\( 0.1 \mathrm{~g} \) of an element contains \( 4.39 \times 10^{20} \) atoms. The element is
(A) \( \mathrm{Ga} \)
(B) \( \mathrm{Ce} \)
(C) \( \mathrm{Pb} \)
(D) Ba.
\( \mathrm{P} \)
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