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

Calculate the heat benzene liquid or toluene liquid, Consider a distillatio...

Consider a distillation column that separates benzene and toluene. 100 moles of an equimolar mixture is fed to the column. The overhead product from the column is fed to a total co

The bond length of hcl, The interatomic distances in H 2 and Cl 2 molecul...

The interatomic distances in H 2 and Cl 2 molecules are 74 and 198 pm respectively. The bond length of HCl  is : (1) 272 pm                                          (2) 1

Phenol, #formation of salicylic acidquestion..

#formation of salicylic acidquestion..

The metal atom tends, What metals combine with non-metals, the metal atom t...

What metals combine with non-metals, the metal atom tends to: (1) Lose electrons     (2) Gain electrons (3) Remain electrically neutral (4)

Bohr''s principle the relation between principle quantum no, According to B...

According to Bohr's principle, the relation between principle quantum number and radius of orbit is: (1) r ∞ n    (2) r ∞ n 2       (3) ∞1/n  (4) r∞ 1/ n 2 Ans:  r

Electrochemical, I need a tutor for grad-level electrochemical specifically...

I need a tutor for grad-level electrochemical specifically cyclic voltammetry. Can you provide this?

Polymer, short note on vulcanization of rubber.

short note on vulcanization of rubber.

Libermann''s reaction, CAN SOMEONE PLEASE EXPLAIN TO BE HOW THE LIBERMANNS ...

CAN SOMEONE PLEASE EXPLAIN TO BE HOW THE LIBERMANNS CHEMICAL REACTION WORKS? I ALSO NEED ALOT ABOUT THE CHEMISTRY BEHIND THE REACTION, AND CANT FIND MUCH ONLINE.. PLEASE HELP ME

Explain the winnowing and primary processing of wheat, Explain the Winnowin...

Explain the Winnowing and Primary processing of wheat  Winnowing: In this process, the impurities are  separated on the principle that their density differs from that of the

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