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

Why nichrome and not copper is used as heating element, Explain why nichrom...

Explain why nichrome and not copper is used as heating element whereas manganin is used as standard resistance? For heating elements, primary requirements are high melting poin

Orbital with maximum energy, The orbital with maximum energy is: (1) 3d...

The orbital with maximum energy is: (1) 3d            (2) 5p       (3) 4s             (4) 6d Ans: 6d

Covalent compounds are generally, Covalent compounds are generally ...... i...

Covalent compounds are generally ...... in water: (1) Soluble                                          (2) Insoluble      (3) Dissociated       (4) Hydrolysed Ans:

Reversible and irreversible cells for asssignment, REVERSIBLE CELLS AND IRR...

REVERSIBLE CELLS AND IRREVERSIBLE CELLS DEFINITION, TYPES, CLASSIFICATION, REACTION AND DIFFERENCES

What are independent and dependent variables, Q. What are Independent and d...

Q. What are Independent and dependent variables? Independent variables are the parameters such as ingredients and processing condition which have effect on product quality. Dep

Explain about structural isomerism, Q. Explain about Structural Isomerism? ...

Q. Explain about Structural Isomerism? When two molecules have the same atoms but different bonds, they are called structural isomers. Thus, the variation of bond type or multi

Haloform reactions, what is the chemistry behind haloform reactions?

what is the chemistry behind haloform reactions?

#title.Radiometric titrations, Limitations,Procedure, Advantages of radiome...

Limitations,Procedure, Advantages of radiometric titratons

Nitrogen, why nitrogen act as inert gas

why nitrogen act as inert gas

Acidity determination, 20ml of water sample requires 15ml of 0.1mg/l sodium...

20ml of water sample requires 15ml of 0.1mg/l sodium carbonate using phenolphthalein indicator. state the type of acidity and calculate the acidity

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