During `alpha`-decay:

Write the nuclear reactions for the following alpha-decay of "_84^204Po .

Define alpha - decay and show that kinetic energy of an alpha -particle is (m_yQ)/(m_y+ m_alpha') , Where the symbols have their usual meaning.

The half-life of "_92^238U undergoing alpha decay is 4.5 xx 10^9 years. Calculate the activity of 10 g sample of "92^238U .

Define alpha decay?

A nucleus "_92U^235 undergoes alpha decay and transformeers into thorium. What is the mass number and charge number of nucleus produced?

The half life of "_92^238U against alpha-decay is 1.5 xx 10^17s . What is the activity of a sample of "_92^238U having 25 xx 10^20 atoms?

Half life of "_92^238U against alpha-decay is 4.5 xx 10^9 years. Calculate activity of 1 g of sample "_92^238U .

Find the Q-value and the kinetic energy of the emitted a-particle in the alpha -decay of - "_88^226Ra .Given m ( "_88^226Ra ) = 226.02540 u and m ( "_86^222Rn ) = 222.01750 u.