Tag: beta decay
Questions Related to beta decay
A radioactive element ${X} _{90}^{238}$ decays into ${Y} _{83}^{222}$. The number of $\beta$-particles emitted are
The mass number of an element in a radioactive series is 223. Then the radioactive series is ................
A radio isotope X has a half life of $10s$. Find the number of active nuclei in the sample (if initally there are $1000$ isotopes which are falling from rest from a height of $3000m$) when it is at a height of $1000m$ from the reference plane:
When a $\beta^-$ particle is emitted from a nucleus, the neutron-proton ratio:
A certain mass of an ideal diatomic gas contained in a closed vessel is heated. It is observed that half the amount of gets dissociated, but the temperature remains constant. The ratio of the heat supplied to the gas to the initial internal energy of the gas will be
A positron is emitted by radioactive nucleus of proton number $90$. The product nucleus will have proton number :
When $ _{15}P^{30}$ decays to become $ _{14}Si^{30}$, which particle is released ?
A nucleus $ _{ }^{ 220 }{ X }$ at rest decays emitting an $\alpha$- particle. If energy of daughter nucleus is $0.2MeV$, $Q$ value of the reaction is
The antiparticle of electron is
Which decay increases the atomic number?