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

What is a salt bridge, What is a salt bridge? Salt bridge is a device ...

What is a salt bridge? Salt bridge is a device used to link two electrodes on electrochemical cell. It maintains electrical neutrality and internal continuity. It is shown by

Drugs, what are antifertility drugs

what are antifertility drugs

Electrochemestry, how we can understand a katod in solution

how we can understand a katod in solution

Alcohols, Action of grignard reagents on carbonyl compounds with examples

Action of grignard reagents on carbonyl compounds with examples

Chemical properties proteins - salt formation, Chemical Properties Proteins...

Chemical Properties Proteins - Salt formation (i) Salt formation : Due  to  existence of  both -NH 2 and -COOH groups in proteins, they make salts along with acids and bases.

What is nucleophile?, A nucleophile is a chemical species that donates an e...

A nucleophile is a chemical species that donates an electron pair to an electrophile to form a chemical bond in a reaction. All molecules or ions with a free pair of electrons or a

Buffer capacity, plz explain me about buffer capacity and its type

plz explain me about buffer capacity and its type

Reversible cell, What things i can include under this topic(reversible cell...

What things i can include under this topic(reversible cell).

Hydrogen, It is stated that Bohrs theory is applicable to hydrogen like ion...

It is stated that Bohrs theory is applicable to hydrogen like ions.why? Ans) It is not stated in bohr''s theory but it is a drawback of his theory. The reason for this is

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