Nuclei

Related Questions

• The half life period of radium is 1600 years. The fraction of a sample of radium that would remain after 6400 years is

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• Two nucleons are at a separation of $1 \times {10^{ - 15}}m$. The net force between them is ${F_1}$, if both are neutrons, ${F_2}$ if both are protons and ${F_3}$ if one is a proton and other is a neutron. In such a case

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• In helium nucleus, there are

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• The activity of a sample is $64 \times 10^{–5}$ Ci. Its half-life is 3 days. The activity will become $5 \times 10^{–6}$ Ci after

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• When $_{90}T{h^{228}}$ transforms to $_{83}B{i^{212}}$, then the number of the emitted $\alpha$ - and $\beta$ -particles is, respectively

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