Subatomic Particle | MCQs

Explanation

Explanation

Neutrons have no electric charge, hence they are neutral.

Protons have a positive charge.

Electrons have a negative charge.

Explanation

The mass of the proton is almost 1836 times heavier than that of an electron.

while

A neutron is 1842 times heavier than an electron.

Explanation

- The elementary charge on a single electron is -1.6 × 10⁻¹⁹ coulombs.

- It’s a fundamental physical constant.

Explanation

One up quark and two down quarks, when combined, make a neutron. 

More specifically:

A proton consists of two up quarks and one down quark (uud). 

A neutron consists of one up quark and two down quarks (udd). 

An electron and a positron are elementary particles, not composed of quarks. 

Explanation

The relative atomic mass of a neutron is approximately 1.0087 amu (atomic mass units), slightly more than that of a proton (about 1.0073 amu)

Explanation

A photon is a boson, which is a particle with an integer spin that transmits electromagnetic force. 

Proton: Protons are fermions, which have a half-integer spin. 

Neutrino: Neutrinos are also fermions. 

Pion: While considered a meson, pions are composite particles made of quarks and antiquarks and are classified as bosons. 

Explanation

A cyclotron is a machine that accelerates charged particles or ions to high energies.

It was invented to investigate the nuclear structure by E.O Lawrence and M.S Livingston in 1934.

Explanation

Hadrons are particles that participate in strong nuclear force and include protons, neutrons, and heavier particles.

They are generally equal to or heavier than protons in mass.

Explanation

There are three subatomic particles: protons, neutrons and electrons.

Two of the subatomic particles have electrical charges: protons have a positive charge

while

electrons have a negative charge.

Neutrons, on the other hand, don't have a charge.

ND11-07-2023