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

According to heisenberg uncertainty principle, According to heisenberg unce...

According to heisenberg uncertainty principle: (1) E=mc 2                             (2) Δ x ×  Δp ≥ h/ 4 Π  (3)γ = h/ p     (4)  Δ x ×   Δ = h / 6 Π  Norma

Determine the formula of the compound, A compound is prepared by two elemen...

A compound is prepared by two elements N and M. The element N forms ccp structure and atoms of M occupy 1/3rd of tetrahedral voids. Determine the formula of the compound ?

The energy of a photon is calculated, The energy of a photon is calculated ...

The energy of a photon is calculated by: (1) E= hv (2) h= Ev (3) h = E/v (4) E= h/v Ans: E= hv

Analysis of metabolic components , 1. Produce a figure with an appropriate ...

1. Produce a figure with an appropriate figure legend of your SDS-PAGE gel that could be published in a scientific journal.   Indicate all relevant information, e.g.origin, f

#space lattice, #space lattice, unit cell, calculation of particles per uni...

#space lattice, unit cell, calculation of particles per unit cell, laws of crystallography, symmetry elements in crystals, derivation of braggs equation#

The color of b-carotene, The color of b-carotene The color of b-caroten...

The color of b-carotene The color of b-carotene is because of its chromophore of extensively conjugated double bonds. Catalytic hydrogenation would result in addition of hydrog

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