Uranium of atom number 92 and mass number 238 emits an alpha particle from its…

Uranium of atom number 92 and mass number 238 emits an alpha particle from its nucleus. The new nucleus formed has respectively, atomic number and mass number
  • A.
    94 and 238
  • B.
    90 and 236
  • C.
    88 and 234
  • D.
    90 and 234
Correct Answer: Option D
Explanation

(U^{238 – 4}_{92 – 2})

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