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

The following is least soluble, Which of the following is least soluble: ...

Which of the following is least soluble: (1) BeF 2                                              (2)  NaBr                  (3)  CaF 2                              (4

What are liquid crystals, What are liquid crystals? Give examples. Liq...

What are liquid crystals? Give examples. Liquid crystals are an intermediate state among liquid state and solid state. They exhibit some characteristic properties of both soli

Ozone, trailing of mercury

trailing of mercury

What is standard deviation, What is Standard deviation? Standard deviatio...

What is Standard deviation? Standard deviation tells about the widely spread out of the measured analytical data points. Highly precised measurements are less standard deviation.

Explain about Froth flotation process , Q. Explain about Froth flotation pr...

Q. Explain about Froth flotation process? Froth flotation process is the most important method for beneficiation of ores. This process has made possible the beneficiation of lo

Determine the calories, The Calorie, used to express food heat values, is s...

The Calorie, used to express food heat values, is similar as a kilocalorie of heat energy . If you eat a chocolate bar from the United States with 600 Calories of food energy, how

Electricity, when will conductors conduct electricity?

when will conductors conduct electricity?

The shape of p -orbital is, The shape of P -orbital is : (1) Elliptical ...

The shape of P -orbital is : (1) Elliptical (2) Spherical  (3) Dumb-bell (4) Complex geometrical Ans: Dumb-bell

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