What is an alpha particle composed of?

• Two protons and two neutrons

• One proton and three neutrons

• Two electrons and two neutrons

• Four protons

How does an alpha particle relate to helium-4?

• An alpha particle is a form of hydrogen nucleus.

• An alpha particle contains two protons and two neutrons but is not helium-4.

• An alpha particle is identical to a helium-4 nucleus.

• An alpha particle is a type of electron.

What charge does an alpha particle carry?

• +1

• -1

• +2

• 0

What happens to a parent nucleus during alpha decay?

• The parent nucleus gains 2 protons and 4 nucleons.

• The parent nucleus splits into two equal parts without changing nucleons.

• The parent nucleus transforms into a daughter nucleus with 2 fewer protons and 4 fewer nucleons.

• The parent nucleus emits a beta particle and remains unchanged.

How many protons does the daughter nucleus have after alpha decay?

• The daughter nucleus has 2 fewer protons than the parent nucleus.

• The daughter nucleus has 1 fewer proton than the parent nucleus.

• The daughter nucleus has 4 fewer protons than the parent nucleus.

• The daughter nucleus has the same number of protons as the parent nucleus.

What is emitted during beta-minus decay?

• A positron and a photon

• An electron and an antineutrino

• A proton and a neutrino

• A muon and a gluon

What is the nucleon number of a beta-minus particle?

• -1

• 1

• 0

• 2

What is the symbol for a beta-minus particle?

• β⁻

• e⁺

• e⁻

• p⁻

How does beta-minus decay affect the proton number of the nucleus?

• The proton number increases by 1.

• The proton number decreases by 1.

• The proton number doubles.

• The proton number remains the same.

What type of particle is a beta-minus particle?

• An electron

• A proton

• A positron

• A neutron