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===Isotopes===

===Isotopes===

Atoms of the same element that have different numbers of neutrons are known as isotopes. Some isotopes are more stable than others, and occur more often in nature, but there is no "standard" number of neutrons in a given element. The atomic weight of an element is a weighted average of the number of neutrons and protons (number of protons remains constant in a given element) in all naturally occurring isotopes.

Atoms of the same element that have different numbers of neutrons are known as [[isotope|isotopes]]. Some isotopes are more stable than others, and occur more often in nature, but there is no "standard" number of neutrons in a given element. The atomic weight of an element is a weighted average of the number of neutrons and protons (number of protons remains constant in a given element) in all naturally occurring isotopes.

[[Category:Chemistry]]

[[Category:Chemistry]]

[[Category:Physics]]

[[Category:Physics]]