Question

The total number of protons, electrons and neutrons in 12 g of ${}_6^{12}C$ is equal to ________.

• A. $1.084\times {10}^{25}$
• B. $6.022\times {10}^{23}$
• C. $6.022\times {10}^{22}$
• D. $36.13\times {10}^{23}$

Answer 1

The correct option is A $1.084\times {10}^{25}$

1 mole of anything contains $6.023\times {10}^{23}$.

So the 12 g of ${}_6^{12}C$ means 1 mole of carbon and it is having 6 protons, neutrons, electrons

The total number of protons, electrons and neutrons in 12 g of carbon is $6\times 6.023\times {10}^{23}$ i.e $36.13\times {10}^{23}$

There are3 same no of protons, neutrons, and electrons.

Thus, the total no of protons, neutrons and electrons is 12 g of ${}_6^{12}C$= $3\times 36.13\times {10}^{23}=1.084\times {10}^{25}$

Hence, the correct option is $\text{A}$