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Question

Chemistry Question on p -Block Elements

Of the following atoms, which one has the highest n/p ratio?

A

Ne16Ne^{16}

B

O16O^{16}

C

F16F^{16}

D

N16N^{16}

Answer

N16N^{16}

Explanation

Solution

Highest n/p ratio 10Ne16⇒n=6p=10np=610=0.6; 8O16 ⇒n=8p=8n/p=1_{10}Ne^{16} \Rightarrow^{p=10}_{n=6}\quad\quad\frac{n}{p}=\frac{6}{10}=0.6;\, _{8}O^{16}\,\Rightarrow^{p=8}_{n=8}\qquad n/p=1 9F16⇒n=7p=9 np=79; 7N16⇒n=9p=7 n/p=97=1.2857 =0.778_{9}F^{16} \Rightarrow^{p=9}_{n=7}\, \frac{n}{p}=\frac{7}{9}; \, _{7} N^{16} \Rightarrow^{p=7}_{n=9}\, n/p=\frac{9}{7} =1.2857\,_{=0.778}