Calculating Alpha Decay Energy for A=210, Q=5Mev

In summary, the question asks about the alpha energy emitted in the decay of a nucleus with A=210 and a Q value of 5 MeV. Using energy and momentum conservation, it can be determined that the daughter nucleus is most likely 206-Bi with an atomic weight of 206 and the alpha particle has an atomic weight of 4. By conserving momentum and sharing 5 MeV between them, the alpha energy emitted can be calculated.
  • #1
matt222
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Homework Statement



if the decay of nucleuse with A=210, what is the alpha energy emited when the Q of the decay is 5Mev

Homework Equations





The Attempt at a Solution


by energy and momentum conservation:

parent=daughter+alpha decay+Q

from the question the parent has A=210, in the table indicate Astatine (210-At), the daughter confused me, the parent should be taken off by A=210-4=206 And Z=85-2=83,

from the table should it be the daughter 206-Bi and z=83?
 
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  • #2
How did you conclude that it was At-210, and not something else (like Po-210 - this is far more likely)? But anyway, it doesn't really matter. If you know that the decay products have atomic weights of 206 and 4, just share 5 MeV between them and conserve momentum and you'll have your answer.
 

1. What is alpha decay?

Alpha decay is a type of radioactive decay in which an alpha particle, consisting of two protons and two neutrons, is emitted from the nucleus of an atom.

2. How is alpha decay energy calculated?

The formula for calculating alpha decay energy is E = Q + Mp - Md, where E is energy, Q is the decay energy, Mp is the mass of the parent nucleus, and Md is the mass of the daughter nucleus.

3. What is the value of A=210 and Q=5Mev?

In this context, A=210 refers to the mass number of the parent nucleus, and Q=5Mev refers to the decay energy in megaelectronvolts. These values are used in the formula to calculate the alpha decay energy.

4. What are the units of alpha decay energy?

The units of alpha decay energy are typically expressed in megaelectronvolts (Mev) or in joules (J).

5. How is alpha decay energy important in nuclear physics?

Calculating alpha decay energy is crucial in understanding the stability and behavior of nuclear particles and reactions. It also has practical applications in fields such as radiometric dating and nuclear energy production.

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