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

The quantum numbers for the outermost electron of an element, The quantum n...

The quantum numbers for the outermost electron of an element are given below as n= 1, l=0, m=0, s = 1/2  . The atoms is: (1) Lithium (2) Beryllium (3) Hydrogen     (4)

Soap, Ask question #Minimum 60 words accepted#

Ask question #Minimum 60 words accepted#

Formation and stabilisation of beta-sheets in proteins, What aspects of ami...

What aspects of amino acid structure are involved in the formation and stabilisation of beta-sheets in proteins? Start with a paragraph that describes important basic informatio

Reactants in excess, Q. Use of Reactants in Excess? Ans. Consider ...

Q. Use of Reactants in Excess? Ans. Consider a recipe for pancakes that calls for 2 cups of pancake batter mix and 1 cup of water. The result of this recipe is 14 pancakes

Illustrate process of extrusion, Illustrate process of extrusion. In t...

Illustrate process of extrusion. In this process a round heated billet of metal which is placed in a container is forced out through a die in a press. This process is normally

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