Atom \(^{234} _{88} Q\) decay by alpha emission to give an atom R. The atomic number and mass number of atom R are respectively

peluminary

5 years ago

In alpha ray emission the mass is decreased by 4(four) and the atomic number is decreased by 2(two),because of this th answer is option D

Cheezyboi

2 years ago

hhg

problemkid

6 years ago

its decays by alpha particle therefore the ans is D not A

Ojoshegbe1887

5 months ago

The answer is D