Question

Emission of one $\alpha$- and two $\beta$-particles will result in the formation of an isotope.
If true enter 1, else enter 0.

Answer 1

The given statement is true.
Emission of one α- and two β-particles will result in the formation of an isotope.
Emission of one α- particle will decrease the atomic number by 2 and mass number by 4.
Emission of one β- particle will increase atomic number by 1 and the mass number will remain unchanged.
Emission of two β- particles will increase atomic number by 2 and the mass number will remain unchanged.
Emission of one α- and two β-particles will not affect the atomic number but mass number will decrease by 4. Hence, an isotope will be obtained.
${}_a^{b}X\underset{-2\beta }{\overset{-\alpha }{\to }}{}_a^{b-4}Y$
Note: Isotopes have same atomic numbers but different mass numbers.