isotope
Any of two or more forms of an element where the atoms have the same number of…Any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei. Thus, isotopes have the same atomic number but a different mass number.
» The principal natural isotope of aluminium is aluminium-27.
Meaning
1 sensesAny of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei. Thus, isotopes have the same atomic number but a different mass number.
Isotop
изото́пizotóp
ізото́пizotóp
one of two or more atoms with the same atomic number but with different numbers of neutrons
Examples
3 sentencesThe principal natural isotope of aluminium is aluminium-27.
It's one of the isotopes that can be found in the Earth's crust.
Isotopes are atoms that have the same number of protons, but different numbers of neutrons and thus different atomic weight values.
Translations
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Origin
From iso- (“equal”) + -tope (“place”), because the different isotopes of an element alwaysFrom iso- (“equal”) + -tope (“place”), because the different isotopes of an element always occupy the same place in the periodic table. The term was coined by Scottish doctor Margaret Todd in 1909 and first used publicly on February 27, 1913 by English chemist Frederick Soddy.
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