Question

Two protons and two neutrons are released as a result of this reaction. Rn Po + ?Which particle is released?one alpha particletwo beta particlesone alpha and one beta particleone high-energy photon

Answer 1

A ) One alpha particle

this is the correct answer.

Answer 2

The nuclear reaction occurring is known as alpha-decay, and during this process, an alpha particle is released from a heavy radioactive nucleus to form a lighter more stable nucleus. The alpha particle is equivalent to a helium nucleus, which means it contains 2 protons and two neutrons (net charge of +2)
The decay equation is:
Rn → Po + α