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

Molar conductivity, what is molar conductivity at infinite dilution

what is molar conductivity at infinite dilution

Help, how much atp energy (kcal) is produced in our bodies from the convers...

how much atp energy (kcal) is produced in our bodies from the conversion of 100.0 moles of sucrose?

Determine mass to charge ratio of the electron, Q. Determine Mass to charge...

Q. Determine Mass to charge ratio of the electron? Ans. Eventually, Thomson was able to find the ratio of the electron's mass to its electrical charge (m/e). Regardless o

Simple distillation, n-propyl acetate evaporates rapidly when exposed to ai...

n-propyl acetate evaporates rapidly when exposed to air,but water does not.Explain

S-block element, phsiscal properties &chemical propertise

phsiscal properties &chemical propertise

Physical, Ask quschrodinger wave equationestion #Minimum 100 words accepted...

Ask quschrodinger wave equationestion #Minimum 100 words accepted#

Resonance effect - effect of substituents on acidity, Resonance effect - Ef...

Resonance effect - Effect of substituents on acidity Same as inductive effect, if the resonance producing group exerts minus effect that is, if it withdraws electrons, it raise

Alkaline metals, why sodium react with water form a fair

why sodium react with water form a fair

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

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