Elements \(P\) has an atomic number of 12 while element \(Q\) has an atomic number 15. Combination of \(P\) and \(Q\) gave a compound \(P _{m} Q _{n}\). the respective values of \(m\) and \(n\) are ____________
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Correct Answer: Option C
Explanation:
\begin{aligned}
&{ }_{12} P -1 s ^{2} 2 s ^{2} 2 p ^{6} 3 s ^{2}, P \text { in ionic form } P ^{2+} \\
&{ }_{15} Q -1 s ^{2} 2 s ^{2} 2 p ^{6} 3 s ^{2} 3 p ^{3} Q \text { in ionic form } Q ^{3}
\end{aligned}
\begin{aligned}
&{ }_{12} P -1 s ^{2} 2 s ^{2} 2 p ^{6} 3 s ^{2}, P \text { in ionic form } P ^{2+} \\
&{ }_{15} Q -1 s ^{2} 2 s ^{2} 2 p ^{6} 3 s ^{2} 3 p ^{3} Q \text { in ionic form } Q ^{3}
\end{aligned}