Question

an alpha partical contains

Answer 1

Answer:

an alpha particle contains two protons and two neutrons.

Explanation:

Because an alpha particle has no electrons to balance the positive charge of the two protons, it has a charge of +2 and can be represented as He2+.

Answer 2

Explanation:

Alpha particles (a) are composite particles consisting of two protons and two neutrons tightly bound together . They are emitted from the nucleus of some radionuclides during a form of radioactive decay, called alpha-decay.