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

Chemical combinations, explain about law of chemical combinations in about ...

explain about law of chemical combinations in about 200 words?

Explain about the dielectric breakdown, Explain about the Dielectric  Brea...

Explain about the Dielectric  Breakdown Dielectric  Breakdown  of  a  dielectric  material  is  because of the excitation of electrons into the conduction band across energy

Calculate the standard potentials of the ag5, Calculate the standard potent...

Calculate the standard potentials of the Ag 5 and Ag 10 nanoclusters. Define the change in standard potential of silver nanoclusters with particle sizes ranging from very sma

Reading IR, i need help reading this IR chart to figure out what the compou...

i need help reading this IR chart to figure out what the compound is

Enthalpy and hess’ law, The enthalpy change (ΔH) in a reaction is equal to ...

The enthalpy change (ΔH) in a reaction is equal to the heat input under conditions of constant pressure and temperature. It is not equal to the total energy change, as work may be

Help, what category are Alkali-Metals on the periodic table?

what category are Alkali-Metals on the periodic table?

Electrochemistry and ion concentration, ELECTROCHEMISTRY AND ION  CONCENTR...

ELECTROCHEMISTRY AND ION  CONCENTRATION Activity dependence of cell voltage: Measurement of galvanic cell potentials away from the standard state provides a convenient me

Which carbonate mineral reacts with cool dilute hydrochloric, Which carbona...

Which carbonate mineral reacts readily with cool dilute hydrochloric acid to produce visible bubbles of carbon dioxide gas? Many carbonate minerals.

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