Modern Physics Ques 302
- How many electrons, protons and neutrons are there in a nucleus of atomic number $11$ and mass number $24$ ? Find,
(1982, 2M)
(a) Number of electrons.
(b) Number of protons.
(c) Number of neutrons.
Show Answer
Answer:
Correct Answer: 302.(Zero, $11,13$)
Solution:
Formula:
- Number of proton $=$ atomic number $=11$
Number of neutron $=$ mass number - atomic number $=13$
But note that in the nucleus number of electrons will be zero.