Nuclear Equations
This type of decay causes a reduction in mass number.
What is alpha?
This causes nuclear decay.
What is an unstable nucleus?
The number of neutrons in Hydrogen-3.
What is 2?
In this type of decay, a neutron changes into a proton and releases an electron.
What is beta decay?
The missing particle.
146C→ ____ + 147N
What is 0-1 e?
An atom or molecule with a positive or negative charge.
What is an ion?
Isotopes differ in the number of these subatomic particles.
What are neutrons?
After one half-life, this fraction of the original radioactive sample remains.
What is 1/2?
This type of nuclear decay is most likely to occur in isotopes with an atomic number larger than 83.
What is alpha decay?
The missing particle.
23191Pa → ____ + 22789Ac
What is 42He?
These high-energy rays are the most penetrating form of ionizing radiation.
What are gamma rays?
The number of protons in Uranium-238.
What is 92?
After two half-lives, this fraction of the original radioactive sample remains.
What is 1/4?
The missing isotope.
21082Pb → 42He + ____
What is 20680Hg?
This product of nuclear decay can be stopped by a sheet of paper.
What is alpha particle?
Another name for Hydrogen-2.
What is deuterium?
How much of a 24g sample of Nitrogen-13 remains after 20 minutes if the halflife is 10 minutes?
What is 6g?
The difference between nuclear fission and nuclear fusion.
What is fission splits heavy atomic nuclei, while fusion joins light atomic nuclei?
The missing isotope.
____ → 0-1 e + 21084 Po + 00 ɣ
What is 21083 Bi?
This naturally occurring radioactive gas can accumulate in basements and is a major source of ionizing radiation exposure.
What is radon?
Another name for Hydrogen-3.
What is tritium?
After 4 half-lives, this percent of a radioactive substance remains.
What is 6.25%?
What is a geiger counter?