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

Question

a
electron
b
proton
c
neutrino particle
d
neutron

Answer 1

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

b. proton

The number of protons in the nucleus of an atom defines the element. Changing the number of protons would result in a different element. Electrons, neutrons, and neutrinos can be changed without altering the element's identity.