Question
Explain the process of γ-decay in detail with a suitable example.
✓
Answer
$\gamma$-decay:
i. $\gamma$-Radiation is always accompanied with $\alpha$ and $\beta^{-}$decay processes.
ii. During $\gamma$-radiation, the daughter nucleus is left in energetically excited state which decays to the ground state of product with emission of $\gamma$ rays.
For example, ${ }_{92}^{238} U \longrightarrow{ }_{90}^{234} Th +{ }_2^4 He +\gamma$
iii. ${ }_{22}^{238} U$ emits $\alpha$-particles of two different energies, $4.147 MeV (23 \%)$ and $4.195 MeV (77 \%)$.
iv. When $\alpha$-particles of energy $4.147 MeV$ are emitted, ${ }^{234} Th$ is left in an excited state which de-excites to the ground state with emission of $\gamma$-ray photons with energy $0.0048 MeV$.
i. $\gamma$-Radiation is always accompanied with $\alpha$ and $\beta^{-}$decay processes.
ii. During $\gamma$-radiation, the daughter nucleus is left in energetically excited state which decays to the ground state of product with emission of $\gamma$ rays.
For example, ${ }_{92}^{238} U \longrightarrow{ }_{90}^{234} Th +{ }_2^4 He +\gamma$
iii. ${ }_{22}^{238} U$ emits $\alpha$-particles of two different energies, $4.147 MeV (23 \%)$ and $4.195 MeV (77 \%)$.
iv. When $\alpha$-particles of energy $4.147 MeV$ are emitted, ${ }^{234} Th$ is left in an excited state which de-excites to the ground state with emission of $\gamma$-ray photons with energy $0.0048 MeV$.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
State physical properties of alkanes.
Calculate the oxidation number of underlined atoms.
a. $H_2SO_4$
b. $HNO_3$
c. $H_3PO_3$
d. $K_2C_2O_4$
e. $H_2S_4O_6$
f. $Cr_2O_7^{2-}$
g. $NaH_2PO_4$
→a. $H_2SO_4$
b. $HNO_3$
c. $H_3PO_3$
d. $K_2C_2O_4$
e. $H_2S_4O_6$
f. $Cr_2O_7^{2-}$
g. $NaH_2PO_4$
Differentiate between oil in water and water in oil emulsions.
Explain Dalton’s atomic theory.
State the order of filling atomic orbitals following Aufbau principle.
How does Huckel rule help in determining the aromaticity of pyridine?
Write the uses of : $i.$ alkali metals $ii.$ alkaline earth metals
→Write a note on cis and trans form of unsaturated fats.
Define :
a. Bond Enthalpy
b. Bond Length
a. Bond Enthalpy
b. Bond Length