SATHEE: Nuclear Chemistry - Result Question 15

Nuclear Chemistry - Result Question 15

####18. Emission of an alpha particle leads to a [1989]

(a) Decrease of 2 units in the charge of the atom

(b) Increase of 2 units in the mass of the atom

(d) Increase of 4 units in the mass of the atom.

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Solution:

(a) Emission of $α$ -particle $(_{2}^{4} H e)$ leads to decrease of 2 units of charge. e.g.

$_{92} U^{238} ⟶_{90} T h^{234} +_{2} H e^{4}$

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Nuclear Chemistry - Result Question 15

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