Radioactivity and Nuclear Chemistry · Chemistry · WB JEE
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WB JEE 2024
After the emission of a $$\beta$$-particle followed by an $$\alpha$$-particle from $${ }_{83}^{214} \mathrm{Bi}$$, the number of neutrons in the atom ...
WB JEE 2023
If in case of a radio isotope the value of half-life (T$$_{1/2}$$) and decay constant ($$\lambda$$) are identical in magnitude, then their value shoul...
WB JEE 2021
For the reaction $$_7^{14}N(\alpha ,p)\,{}^{17}O$$, 1.16 MeV (Mass equivalent = 0.00124 amu) of energy is absorbed. Mass on the reactant side is 18.00...
WB JEE 2019
The half-life period of $${}_{53}{I^{125}}$$ is 60 days. The radioactivity after 180 days will be
WB JEE 2019
Consider, the radioactive disintegration $${}_{82}{A^{210}}\buildrel {} \over
\longrightarrow B\buildrel {} \over
\longrightarrow C\buildrel {} \ove...
WB JEE 2019
Which atomic species cannot be used as a nuclear fuel?
WB JEE 2018
The half-life of C14 is 5760 years. For a 200 mg sample of C14, the time taken to change to 25 mg is
WB JEE 2018
The nucleus $$_{29}^{64}$$Cu accepts an orbital electron to yield,
WB JEE 2017
C6H5F18 is a F18 radio-isotope labelled organic compound. F18 decays by positron emission. The product resulting on decay is ...
WB JEE 2016
If radium and chlorine combine to form radium chloride, the compound would be
WB JEE 2016
An element E loses one $$\alpha$$ and two $$\beta$$-particles in three successive stages. The resulting element will be