A radioactive nucleus is represneted by the symbol`_bX^a`,How is the new ucleus represented after the emission of
a gamma ray photon?

A radioactive nucleus is represneted by the symbol _bX^a ,How is the new ucleus represented after the emission of an alpha particle

A radioactive nucleus is represneted by the symbol _bX^a ,How is the new ucleus represented after the emission of a beta particle

Why does a nucleus emit a gamma -ray photon?

A radioactive nuclide emitts gamma - rays due to the : a) emission of an electron from its orbital b) nuclear energy transition from a higher state to a lower state c) presence of less neutrons than protons d) presence of more neutrons than protons

Deutron is a bound state of a nuetron and a proton with a binding energy B=2.2 MeV. A gamma-rays of energy E is aimed at a deuteron nucleus to try to break it into a (neutron+proton) such that the n and p move in the direction of the incident gamma-rays . If E=B, show that this cannot happen. Hence calculate how much bigger than B must E be for a such a process to happen.

Radioactive disintegration is a first order reaction and its rate depends only upon the nature of nucleus and does not depend upon external factors like temperature and pressure. The rate of radioactive disintegration (Activity) is represented as -(dN)/(dt)=lambdaN Where lambda= decay constant, N= number of nuclei at time t, N_(0) =intial no. of nuclei. The above equation after integration can be represented as lambda=(2.303)/(t)log((N_(0))/(N)) Calculate the half-life period of a radioactive element which remains only 1//16 of its original amount in 4740 years: a) 1185 years b) 2370 years c) 52.5 years d) none of these

Radioactive disintegration is a first order reaction and its rate depends only upon the nature of nucleus and does not depend upon external factors like temperature and pressure. The rate of radioactive disintegration (Activity) is represented as -(dN)/(dt)=lambdaN Where lambda= decay constant, N= number of nuclei at time t, N_(0) =initial no. of nuclei. The above equation after integration can be represented as lambda=(2.303)/(t)log((N_(0))/(N)) Half-life period of U is 2.5xx10^(5) years. In how much time will the amount of U^(237) remaining be only 25% of the original amount ? a) 2.5xx10^(5) year b) 1.25xx10^(5) years c) 5xx10^(5) years d) none of these

Radioactive disintegration is a first order reaction and its rate depends only upon the nature of nucleus and does not depend upon external factors like temperature and pressure. The rate of radioactive disintegration (Activity) is represented as -(dN)/(dt)=lambdaN Where lambda= decay constant, N= number of nuclei at time t, N_(0) =intial no. of nuclei. The above equation after integration can be represented as lambda=(2.303)/(t)log((N_(0))/(N)) What is the activity in Ci (curie) of 1.0mole plutonium -239 ? (t_(1//2)=24000 years) a) 1.49 Ci b) 14.9 Ci c) 5.513xx10^(11) Ci d) None of these

Draw the energy level diagram showing the emission of beta-particl es followed by gamma-rays by a "_27^60Co nucleus?

Upon irradiating californium with neutrons, a scientist discovered a new nuclide having mass number of 250 and a half-life of 30 min. After 90 min. of irradiation, the observed radioactivity due to nuclied was 100 dis/min. How many atoms of the nucliede were prepared intially? a) 2.4xx10^(4) b) 3.46xx10^(4) c) 1900 d) 800