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

Cyclic voltammetry, what risks are involved with the instrument

what risks are involved with the instrument

Atomic absorption spectroscopy, Q1: The complexes of Fe +2   with 1, 10- ph...

Q1: The complexes of Fe +2   with 1, 10- phenanthroline has a molar absorptivity of about 11,000 L/mol cm in water at 510 nm. A 20 ml water sample thought to contain Fe +2   is mix

How to determine the hybridization of a complex compound, How to determine ...

How to determine the hybridization of a complex compound in a easy way? Generally d-block elements have tendency to form coordination compounds. from at. no. 21 .i.e scandi

Chemical answers, 1. Enter the symbol of a sodium ion, Na+, followed by the...

1. Enter the symbol of a sodium ion, Na+, followed by the formula of a sulfate ion, SO42- ..Express your answers as ions separated by a comma. 2.Enter the expression 147N+a, wher

Physical properties of malonic acid, Physical Properties of Malonic Acid ...

Physical Properties of Malonic Acid (a) Malonic Acid is a white crystalline solid. (b) Malonic Acid's melting point is 135°C. (c) Malonic Acid is soluble in water and alc

Energy change and change of state, On a hot summer day in July, Jennifer is...

On a hot summer day in July, Jennifer is trying to make Popsicles.  If she is using 20.6 g of fruit juice how much heat is released when the Popsicle changes from liquid to solid a

Determine the physical characteristics of milk, Determine the physical char...

Determine the physical characteristics and presence of any additives in the given samples of milk. After undertaking this activity, you will be able to: • identify the phy

Dislocations - linear defects, Dislocations-Linear Defects           Di...

Dislocations-Linear Defects           Dislocations are abrupt alters in the regular ordering of atoms, along a line (dislocation line) in the solid. They occur in high density a

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