Question

1.

Refer to the above image. Which of these is NOT found in the nucleus of an atom?
A. Neutrons
B. Protons
C. Atomic mass
D.electrons
Why B is wrong?

Answer 1

D.electrons

Step-by-step explanation:

According to Bohr's concept at electrons spin around the positive charge nucleus.

Later on Rutherford gold foil experiment confirms the presence of proton inside the nucleus.

After that, James Chadwick discovered the neutron in the nucleus.