A radioactive element \[_{90}{{X}^{238}}\]decay into\[_{83}{{Y}^{222}} – McqOptions

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1.	A radioactive element \[_{90}{{X}^{238}}\]decay into\[_{83}{{Y}^{222}}\]. The number of \[\beta -\]particles emitted are [BHU 1997; JIPMER 2001, 02]
A.	4
B.	6
C.	2
D.	1
Answer» E.

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