Navigate

₉₂U²³⁴ has 92 protons and 238 nucleons. It decays by emitting an alpha particle

₉₂U²³⁴ has 92 protons and 238 nucleons. It decays by emitting an alpha particle and becomes

Options

(a) ₉₂U²³⁴
(b) ₉₀Th²³⁴
(c) ₉₂U²³⁵
(d) ₉₃Np²³⁷

Correct Answer:

₉₀Th²³⁴

Explanation:

Emission of alpha particle, decreases the mass number by 4 and charge number by 2.

.·. Decrease in mass number = 238 – 4 = 234

Decrease in charge number = 92 – 2 = 90 ₉₀Th²³⁴ is emitted.

AIIMS2006
admin:

Related Questions

  1. The material suitable for making electromagnets should have
  2. The original temperature of a black body is 727⁰C. The temperature at which this black
  3. Two point white dots are 1 mm apart on a black paper.
  4. A thermocouple of negligible resistance produces an e.m.f. of 40 µV/⁰C in the linear range
  5. If radius of earth’s orbit is made 1/4, the duration of a year will become