If uranium `(` mass number 238 and atomic number 92`)` emits an `alpha-`paticle, the produc has mass number and atomic numberA. 236 and 92B. 234 and 90C. 238 and 90D. 236 and 90

If uranium `(` mass number 238 and atomic number 92`)` emits an `alpha

1.	If uranium `(` mass number 238 and atomic number 92`)` emits an `alpha-`paticle, the produc has mass number and atomic numberA. 236 and 92B. 234 and 90C. 238 and 90D. 236 and 90
Answer» Correct Answer - B Emission of an `alpha-` particle means mass is decreased by 4 units and charge byy 2 units. Thus, `._(92)U^(238)overset(-alpha)rarr._(90)U^(234)` Thus, the mass number `=234` Atomic number `=90`

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If uranium `(` mass number 238 and atomic number 92`)` emits an `alpha-`paticle, the produc has mass number and atomic numberA. 236 and 92B. 234 and 90C. 238 and 90D. 236 and 90

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