physics

Question

Answer 1

Alpha decay (α-decay)

A type of radioactive decay in which an atomic nucleus emits an alpha particle and thereby decays into an atom with a mass number 4 less and atomic number 2 less.

Beta decay (β-decay)

Beta decay occurs when an atom has either too many protons or too many neutrons in its nucleus.

Negative Beta decay

In β− decay, the weak interaction converts an atomic nucleus into a nucleus with one higher atomic number while emitting an electron and an electron antineutrino.

Generic Equation is

Psitive Beta decay

In β+ decay, the weak interaction converts a nucleus into its next-lower neighbor on the periodic table while emitting a positron and an electron neutrino.

Generic Equation is

Gamma decay (γ-decay)

It type of radioactivity in which some unstable atomic nuclei dissipate excess energy by a spontaneous electromagnetic process.

Matchings are

(a) → (1)

(b) → (3)

(c) → (2)

(d) → (4)