Question

In: Chemistry

Through which type of radioactive decay does Am-242 become Np-238?

Through which type of radioactive decay does Am-242 become Np-238?

Solutions

Expert Solution

Answer : Alpha decay

Explanation :-

Americium-242 (Am-242) undergoes alpha decay by emitting alpha particles to form Neptunium-238 (Np-238).

Alpha decay is a type of radioactive decay in which an alpha particle (He) ​​​​​is emitted from radioactive substance to become another substance. In this process, mass number of the radioactive element is reduced by 4 and atomic no is reduced by 2 because Helium has mass no = 4 and Atomic no = 2. General expression of alpha decay is

​​​​​Therefore alpha decay of Am-242 is

Hence the answer. Thanks


Related Solutions

The half-life for the radioactive decay of U−238U−238 is 4.5 billion years and is independent of...
The half-life for the radioactive decay of U−238U−238 is 4.5 billion years and is independent of initial concentration. Part A How long will it take for 20% of the U−238 atoms in a sample of U−238 to decay? Express your answer using two significant figures. Part B If a sample of U−238 initially contained 1.1×1018 atoms when the universe was formed 13.8 billion years ago, how many U−238 atoms will it contain today? Express your answer using two significant figures.
The half-life for radioactive decay (a first-order process) of plutonium-242 is 380,000 years. How many years...
The half-life for radioactive decay (a first-order process) of plutonium-242 is 380,000 years. How many years would it take for one mole of this radioactive material to decay so that just one atom remains?
Which type of nuclear decay is the following radioactive isotope likely to undergo? All known stable...
Which type of nuclear decay is the following radioactive isotope likely to undergo? All known stable isotopes are shown on the graph. The points form what is know as the "belt of stability". If a radioactive isotope is above the belt of stability, think about what type of decay would decrease its N/Z ratio. If an unstable isotope is below the belt of stability, think about what type of decay would increase its N/Z ratio. If a radioactive isotope is...
Determine the type of radioactive decay that corresponds to the given combination of Parent and Daughter...
Determine the type of radioactive decay that corresponds to the given combination of Parent and Daughter Nuclei. Use the web or your book to a find a copy of the periodic table to help with this problem. Alpha Decay, Beta+ Decay, Beta- Decay, Gamma Decay  Parent: 206Ra, Daughter: 202Rn Alpha Decay, Beta+ Decay, Beta- Decay, Gamma Decay  Parent: 8B, Daughter: 8Be Alpha Decay, Beta+ Decay, Beta- Decay, Gamma Decay  Parent: 6He, Daughter: 6Li Alpha Decay, Beta+ Decay, Beta- Decay, Gamma Decay  Parent: 40Ca, Daughter:...
Match the number of protons and neutrons with the type of radioactive decay you would predict...
Match the number of protons and neutrons with the type of radioactive decay you would predict it to exhibit. 83 protons,125 neutrons 83 protons,126 neutrons 83 protons, 127 neutrons 84 protons, 126 neutrons _____ A. positron emission B. alpha decay C. this atom is predicted to be stable D. beta decay
How long does it take for the radioactive isotope to decay to 5.4×10−3μg ? (Assume no...
How long does it take for the radioactive isotope to decay to 5.4×10−3μg ? (Assume no excretion of the nuclide from the body.)
Part A How long does it take for the radioactive isotope to decay to 6.0×10−4 μg...
Part A How long does it take for the radioactive isotope to decay to 6.0×10−4 μg ? (Assume no excretion of the nuclide from the body.) Part B A radioactive sample contains 1.70 g of an isotope with a half-life of 3.6 days. What mass of the isotope will remain after 5.8 days? (Assume no excretion of the nuclide from the body.) Part C A mammoth skeleton has a carbon-14 decay rate of 0.46 disintegrations per minute per gram of...
Genetically, how does an organism become antibiotic-resistant? How does the mechanism for resistance spread through a...
Genetically, how does an organism become antibiotic-resistant? How does the mechanism for resistance spread through a microbial community?
Describe the stage of polymerization through which a phenolic resin passes to become thermoset.
Describe the stage of polymerization through which a phenolic resin passes to become thermoset.
1.Which type of radioactive emission is analogous to an electron being emitted? positron, neutrons, alpha particle,...
1.Which type of radioactive emission is analogous to an electron being emitted? positron, neutrons, alpha particle, gamma rays, beta particle 2. Which isotope is naturally radioactive? 42H, 21H, 168O, 23488Ra 3. the half life of protactinium-231 is 3.5x104 years. How long will it take for 10.4 grams of Pa-231 to decay to 2.6 grams? 4. the half life of phorphorous-33 is 25.3 days. How long will it take for 64 grams of p-33 to decay to 1.0 grams? 5. the...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT