Very Short Question and Answers - Neutrons

The three sub-atomic particles of an atom are protons, neutrons, and electrons.

A Helium atom has 2 neutrons (Atomic mass = Protons + Neutrons; 4 = 2 + Neutrons, so Neutrons = 4 - 2 = 2).

A neutron has no charge (it is neutral).

The neutron was discovered by J. Chadwick in 1932.

The symbol used to represent a neutron is 'n'.

Neutrons are found in the nucleus of an atom.

No, neutrons are not present in hydrogen atoms.

The mass of an atom is contributed by the protons and neutrons present in its nucleus.

The mass of a neutron is nearly equal to that of a proton.

Yes, the neutron is stable when it is inside the nucleus, but free neutrons can decay.

Neutrons help to stabilize the nucleus by providing an attractive force that balances the repulsion between protons.

No, neutrons are only found within the nucleus of atoms.

Neutrons add to the atomic mass of an element as they have mass, but no charge.

The approximate mass of a neutron is 1 u (atomic mass unit).

The atomic mass would be 20 u (10 protons + 10 neutrons).

A neutron outside the nucleus can undergo beta decay and transform into a proton, emitting an electron and an antineutrino.

Isotopes of an element are distinguished by the number of neutrons they contain, while having the same number of protons.

Yes, the number of neutrons can change, leading to the formation of different isotopes.

The number of protons in the nucleus determines the identity of an element.

Neutrons are significant in nuclear reactions as they can initiate fission reactions and influence the stability of nuclei.