Nuclei

Related Questions

• A radioactive element $_{90}{X^{238}}$decay into$_{83}{Y^{222}}$. The number of $\beta -$ particles emitted are

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• The mass of an $\alpha$ -particle is

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• In the uranium radioactive series, the initial nucleus is $_{92}{U^{238}}$and the final nucleus is $_{82}P{b^{206}}$. When the uranium nucleus decays to lead, the number of $\alpha - $ particles emitted will be

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• In the nuclear reaction$_{92}{U^{238}}{ \to _z}T{h^A}{ + _2}H{e^4}$, the values of A and Z are

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• Activity of radioactive element decreased to one third of original activity ${R_0}$ in 9 years. After further 9 years, its activity will be

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