Question

What is the ratio of the neutrons present in carbon and silicon atoms with respect to their atomic masses? (Atomic mass of carbon and silicon are $12$ and $28$ respectively)

• A. $3:7$
• B. $7:3$
• C. $3:4$
• D. $6:28$

Answer 1

The correct option is A $3:7$

Neutrons = Mass number - Atomic Number

Number of neutrons in carbon = 6

Number of Neutrons in silicon = 14

Hence ratio $\frac{6}{14}$ = $\frac{3}{7}$