Chem-Isotopes

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Last updated 5:58 PM on 2/20/25
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10 Terms

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isotopes

Atoms of the same element that have the same number of protons but different numbers of neutrons, resulting in different atomic masses.

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radioisotopes

isotopes that emit radiation as they decay. (they split because of instability)

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isotopy

the occurrence of atoms of a single element that have the same number of protons in their nuclei

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relative atomic mass

The weighted average of the masses of an element's isotopes, (amu). It reflects the abundance of each isotope in a naturally occurring sample.

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a particles

Helium nuclei consisting of two protons and two neutrons, emitted during radioactive decay.

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B particles

Electrons or positrons emitted during beta decay.

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y-rays

High-energy electromagnetic radiation emitted during radioactive decay, often alongside alpha and beta decay.

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cobalt-60

A radioisotope that emits gamma rays and beta particles, used in cancer treatment and industry.

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iodine-131

A radioisotope that emits gamma rays and beta particles, used in cancer treatment and industry.

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carbon-14

A radioisotope of carbon that emits beta particles and is used in radiocarbon dating to determine the age of organic materials.