Which best describes a radioactive isotope?
An isotope with an unstable nucleus which decomposes readily and results in the emission of radiation and a nuclear electron or helium nucleus achieves a stable nuclear composition is known as a radioactive isotope. For example, Thus, we can conclude that an atom is unstable best describes a radioactive isotope.
Which process occurs during radioactive decay quizlet?
What happens during radioactive decay? It is a process where the atomic nuclei of radioactive isotopes release fast-moving particles and energy and the identity of an atom changes. What is radioactive decay an example of? Radioactive decay is an example of a nuclear reaction.
How do you determine the products of radioactive decay?
To find the type of radioactive decay, we will subtract the atomic number and mass number of the product nucleus from the atomic number and mass number of the parent nucleus. Th → 23088Ra + ? The product is an α-particle and the reaction is α-decay.
Which of the following best describes how nuclear decay rates can be altered?
Half-life is consistent over time O High pressure can alter nuclear decay rates. Extreme temperature can alter nuclear decay rates.
What are the four common types of radioactive decay?
Terms in this set (4)
- Alpha Decay. 2 protons and 2 neutrons lost. Atomic number down by 2, atomic mass down by 4.
- Beta Decay. 1 neutron turns into a proton. Atomic number up by 1.
- Positron Emission. 1 proton turns into a neutron.
- Gamma Decay. Due to a high energy nucleus, energy is given off and nucleus becomes stable.
Which reaction is an example of nuclear fusion?
For example, uranium can fission to yield strontium and krypton. Fusion joins atomic nuclei together. The element formed has more neutrons or more protons than that of the starting material. For example, hydrogen and hydrogen can fuse to form helium.