0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Does atomic mass stay the same?
The atomic mass of a radioactive atoms is changed during the radioactive decay (alpha decay, neutron decay, proton decay, double proton decay), spontaneous or artificial fission, nuclear reactions.
When radioactive decays stop?
It will stop when there is nothing left to decay. There is basically no way to stop certain nuclides (isotopes) from decaying.
Why neutron mass is greater of proton mass?
A neutron could split into a proton plus an electron during the radioactive decay..
What are the particles emitted during radioactive decay with their mass and charge?
alpha: mass 4, charge +2beta: mass ~1/1800, charge -1gamma: mass 0, charge 0
What does the half life of a radioisotope represent?
It tells what fraction of a radioactive sample remains after a certain length of time.
What happens to the atomic mass number in a radioactive substance?
In a radioactive substance, the atomic mass number may change as a result of radioactive decay. During radioactive decay, radioactive atoms undergo nuclear reactions, which can lead to the emission of radioactive particles such as alpha or beta particles. These emitted particles can cause a change in the number of protons and neutrons in the nucleus, resulting in a different atomic mass number for the resulting atom or isotope.
Why is a sample of uranium compound found to be losing mass gradually?
The cause is the radioactive decay of uranium isotopes.
How is the atomic mass changed?
When the number of neutrons changes, the atomic mass will change.
If the half-life of a radioactive substance is 10 hours how long will it take for 50 percent of it to decay?
The half-life of a radioactive isotope is defined as the time taken for the isotope to decay to half of its initial mass. So to decay to 50 percent of its initial mass will take one half-life of the isotope. One half-life of the isotope is 10 hours so the time taken to decay is also 10 hours.
When a nucleus undergoes radioactive decay its new mass number is?
It depends. If the decay contains a particle with mass, then the nucleus' mass number must decrease. If the decay involves the emission of a massless particle (like a gamma photon), then the mass number is unchanged. If the reaction (not technically a decay) involves the nucleus absorbing a particle with mass (like U-235 absorbing a neutron in a fission chain reaction) then it is a transmutation and not a natural decay. The mass number must increase.
How much mass is lost through radioactive decay if 1.8 and times 1015 J are released?
0.02 kg
What is The time required for a radioactive mass to reduce by a factor of 2 called?
half- life
