sözcük ara, mesela sapiosexual:
 
1.
Each element has many versions that contain a different number of neutrons in the nucleas. Each different version of the element is called an isotope.
Carbon-13 is and isotope of Carbon
PrivateDonut tarafından 10 Şubat 2005, Perşembe
 
2.
Isotopes are atoms of the same element which have differing number of neutrons.

This means they have the same number of protons.
Deuterium is an isotope of hydrogen.
Deuterium is hydrogen-2, i.e. hydrogen with a mass number of 2 (1 proton + 1 neutron).

Tritium is a rarer isotope of hydrogen, and is also known as hydrogen-3 (it has 1 proton + 2 neutrons).
ChemMan tarafından 12 Mayıs 2010, Çarşamba
 
3.
Lighter and heavier versions of the same thing, (but usually in reference to atoms)
Bud and Bud Lite are "isotopes" of Bud. When you gain weight, you just become an "isotope" of your former self.
387mqr tarafından 15 Ağustos 2008, Cuma