Question

In the nucleus of $_{11}Na^{23}$ , 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)

11,12,0

Answer 2

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.