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

Explain about preparation of diborane, Q. Explain about Preparation of dibo...

Q. Explain about Preparation of diborane? Diborane can be prepared in almost quantitative yields by the reduction of boron Tricloride etherate (BF 3 , 0Et 2 ) with lithium alum

Bohr''s radius can have, Bohr's radius can have: (1) Discrete values ...

Bohr's radius can have: (1) Discrete values (2)  +ve values (3) - ve values (4) Fractional values Ans: +ve values

How to calculate atomic mass of an element, Q. How to calculate atomic mass...

Q. How to calculate atomic mass of an element? Copper survive as a mixture of two isotopes. The lighter isotope (Cu-63) amid 29 protons and 34 neutrons makes up 69.17% of coppe

#title., what are the chemical properties of p-block elements?

what are the chemical properties of p-block elements?

LATTICE OR CRYSTAL LATTICE, What are laws of crystallography?How it helps u...

What are laws of crystallography?How it helps us in the study of crystal structure

Determine the term - photolithography, Determine the term - Photolithograph...

Determine the term - Photolithography  As used in manufacture of I.C.S, it is the process of transferring geometrical shapes on a mask to surface of a silicon wafer. Photomask

Grignard reagants, what are grignard reagants ? how are tthey prepared is l...

what are grignard reagants ? how are tthey prepared is laboratory ? what makes them so important in synthetic chemistry?

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