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

States of matter, why are some liquids purified by distillation under reduc...

why are some liquids purified by distillation under reduced pressure

P-block, explain nitric oxide becomes brown when released in air

explain nitric oxide becomes brown when released in air

The azimuthal quantum number is related to, The azimuthal quantum number is...

The azimuthal quantum number is related to: (1)  Size (2) Shape (3) Orientation     (4) Spin Ans:  Shape

Principal quantum number of an atom represents, Principal quantum number of...

Principal quantum number of an atom represents : (1) Size of the orbital (2) Spin angular momentum (3) Orbital angular momentum (4) Space orientation of the orbital

Determine the total ash content in flour, Q. Determine the total ash conten...

Q. Determine the total ash content in flour? After undertaking this activity, you will be able to: • assess the mineral content in the given sample of flour, • check th

Peridic table, How acidic character varies in s block elements

How acidic character varies in s block elements

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