Manipal MET2011PhysicsNuclear Physics
As a result of radioactive decay ₉₂ U ²³⁸ is converted into ₉₁ ~Pa ²³⁴ . The particles emitted during this decay are
Options
- Aa proton and a neutron
- Ba proton and two -particles
- Can -particle and a -particle
- Dtwo -particles and a proton
Correct answer
C. an -particle and a -particle
Step-by-step solution
Decrease in mass number =238-234=4 No. of -particles emitted = 4 4 =1 Decrease in atomic number due to emission of 1 -particle is 2 , but now atomic number is 91. Hence, number of -particles = 91+2 - 92 = 1 .