RADIOACTIVITY#!#DECAY CONSTANT#!#HALF-TIME

RADIOACTIVE DECAY & HALF LIFE TIME

Gamma Decay|Radioactive Statistical Law|Half Life |Activity|Questions

Gamma Decay|Radioactive Statistical Law|Half Life |Activity|Questions

The decay constant of a radioactive sample is lamda. Its half -life is T_(1//2) and mean life is T.

Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are tau = 1// lambda and t_(1//2) = 0.693//lambda . Therefore are a number of radioactive elements in nature, their abundance is directly proportional to half life. The amount remaining after n half lives of radioactive elements can be calculated using the relation: N = N_(0) ((1)/(2))^(n) Half life of .^(60)Co is 5.3 years, the time taken for 99.9% decay will be

The relationship between decay constant lamda and half-life T of a radioactive substance is

Write the law of radioavtive decay. Decay constant of a radioactive substances is 10^(-3) per year. Calculate its half-life time in year.

Radioactive decay is a first - order process. Radioactive carbon in wood sample decays with a half - life of 5770 years. What is the rate constant ( in years ) for the decay ? What fraction would remains after 11540 years ?