Question

which type of nuclear radiation is being emitted here? beta gamma alpha none

Explanation:

Step1: Calculate the mass number change

The mass number of Ra is \(226\), and the mass number of Rn is \(222\). The change in mass number \(\Delta A=226 - 222=4\).

Step2: Calculate the atomic number change

The atomic number of Ra is \(88\), and the atomic number of Rn is \(86\). The change in atomic number \(\Delta Z = 88-86 = 2\).

Step3: Identify the particle

An alpha particle (\(\alpha\)) has a mass number of \(4\) and an atomic number of \(2\). A beta particle (\(\beta\)) has a mass number of \(0\) and an atomic number of \(- 1\). A gamma ray (\(\gamma\)) has a mass number of \(0\) and an atomic number of \(0\). Since the mass number change is \(4\) and the atomic number change is \(2\), the emitted particle is an alpha particle.

Answer:

alpha