Atoms And Nuclei Question 188
Question: The sodium nucleus $ _{11}^{23}Na $ contains [MP PET 2001]
Options:
A) 11 electrons
B) 12 protons
C) 23 protons
D) 12 neutrons
Show Answer
Answer:
Correct Answer: D
Solution:
Number of neutrons = $ A-Z=23-11=12. $