Which of the following particles cannot be changed without changing the identity of the element?

Question

a
neutrino particle
b
neutron
c
proton
d
electron

Answer 1

The particle that cannot be changed without changing the identity of the element is:

c) proton

The number of protons in an atom's nucleus determines the element's identity. Changing the number of protons would change the element into a different one. In contrast, neutrons and electrons can change without altering the fundamental identity of the element.