If asked "What is an isotope ?" in GCSE Chemistry, a more detailed answer is required using one of the definitions below:Definitions of an isotope: Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons. Another way to say the same ...
These dissimilarities are caused by different numbers of neutrons, while the number of protons are the same in the atomic nucleus. As carbon 12 ( 6 C 12 ), carbon 13 ( 6 C 13 ), and carbon 14 ( 6 C 14 ) are isotrops of element carbon.612613614Springer Berlin Heidelberg...
One of two or more atoms that have the same number of protons but a different number of neutrons. Carbon 12, the most common form of carbon, has six protons and six neutrons, whereas carbon 13 has six protons and seven neutrons.
The number of protons in an atom's nucleus is called its atomic number. Hydrogen has an atomic number of 1; helium, an atomic number of 2; and lithium, an atomic number of 3. But atoms of the same element can have different numbers of neutrons. Some helium nuclei, for example, have...
Presently, the oldest evidence of microbial life on Earth comes to us in the form of stable isotopes. The chemical elements charted on the periodic are defined by the number of protons in their nuclei, for example, hydrogen atoms have one proton, helium atoms have two, carbon atoms contain ...
one of two or more forms of a chemical element that have the same number of protons but a different number of neutrons in their atoms. They have different physical properties (= characteristics) but the same chemical ones. radioactive isotopes the many isotopes of carbonTopics Physics and ...
Isotopes are variants of a particular chemical element that differ in neutron numbe, although all isotopes of a given element have the same number of protons in each atom. Isotope labeling is a common application of isotope, that is, the use of unusual isotopes as tracers or markers in chemi...
Isotopes of a particular element have the same number of protons but a different number of neutrons in the nucleus，resulting in a different atomic mass. For example，the most common element in the universe，hydrogen，by definition contains one proton in its nucleus，but it can ...
\▐ī-sә-▐tōp\n[is- + Gktoposplace] (1913) In chemistry, one of two or more forms of an element (“nuclides”) having the same number of protons in the nucleus but differing in mass number because of different numbers of neutrons. Natural elements are usually mixtures of isoto...
any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in the nucleus, or different atomic weights. There are 275 isotopes of the 81 stable elements, in addition to over 800 ra...