Radioactivity, Chemistry

Assignment Help:

 

Radioactive decay is a process whereby unstable nuclei change into more stable nuclei by emitting particles of different kinds. Alpha, beta and gamma (α, β and γ) radiation was classified according to its different penetrating power.

  • An α particle is a 4He nucleus, and is emitted by some heavy nuclei, producing a nucleus with Z two units less and mass number four units less. For example, 238U (Z=92) undergoes a decay to produce (radioactive) 234Th (Z=90).
  • A β particle is an electron. Its emission by a nucleus increases Z by one unit, but does not affect the mass number. Thus 14C (Z=6) decays to (stable) 14N (Z=7).
  • γ radiation have high-energy electromagnetic radiation. It accompanies α and β decay.

 

 

 

 

 


Related Discussions:- Radioactivity

Ionic bonds, ionic bonds are usually formed by combination of elements with...

ionic bonds are usually formed by combination of elements with which type of ionisation potential or electron affinity

NMR, Shielding of proton by electrons

Shielding of proton by electrons

Calculate ratio of air to methanol , A mixture of air and methanol vapour i...

A mixture of air and methanol vapour is fed to a converter in which the following reactions take place: CH OH O HCHO H O 3 2 2 2 1 + ® + 3 2 CH OH ® HCHO + H In addit

Draw the structures of white phosphorus and red phosphorus, Draw the struct...

Draw the structures of white phosphorus and red phosphorus. Which one of these two types of phosphorus is more reactive and why?

#title.p block elements., #question.which element has the highest oxidation...

#question.which element has the highest oxidation state and why.

Periodic table, how periodic table is helpful in chemistry give two example...

how periodic table is helpful in chemistry give two example

Stability: shape of truncated icosahedron, How can we prove the stability o...

How can we prove the stability of a space colony having a shape of truncated icosahedron? Solution) Because the shape has a sci-fi look to it and it would be very strong structur

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd