Boron has two stable isotopes, \( { }^{10} \mathrm{~B}(19 \%) \) an...

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Boron has two stable isotopes, \( { }^{10} \mathrm{~B}(19 \%) \) and \( { }^{11} \mathrm{~B} \)
\( \mathrm{P} \) \( (81 \%) \). The atomic mass that should appear for

W. boron in the periodic table is
(A) 10.8
(B) 10.2
(C) 11.2
(D) 10.0
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