Question

In the nucleus of ${}_{11}N{a}^{23}$, the number of protons, neutrons and electrons are

• A. 11,12,0
• B. 23,12,11
• C. 12,11,0
• D. 23,11,12

Answer 1

Answer: (A)

$Z=11$ i.e., number of protons $=11,A=23$
$\therefore$ Number of neutrons $=A-Z=12$
Number of electron $=0$ (No electron in nucleus)
Therefore $11,12,0.$