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A radioactive element ""(92) X^(238) emi...

A radioactive element `""_(92) X^(238)` emits one `alpha`- particle and one `beta`' particle in succession.
What is the mass number of new element formed?

Text Solution

Verified by Experts

Mass number of the new element = 234.
(Since the mass number decreases by 4 units in alpha decay but it does not change in beta decay)
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