Isotopes
Definition
Isotopes are atoms of the same element with different numbers of neutrons but the same number of protons. They have identical chemical properties but differ in atomic mass.
Analogy
Isotopes can be compared to different flavors or varieties of a particular food product. For example, just like there can be different types of chocolate bars with varying amounts of nuts, isotopes have different numbers of neutrons while still being the same element.
Related terms
Atomic Mass: The average mass (including all isotopes) for an element listed on the periodic table.
Radioactive Decay: The process by which unstable isotopes spontaneously break down into more stable forms over time.
Half-Life: The time it takes for half of a sample of radioactive isotopes to decay into more stable forms.
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