Web Results

Isotope - Wikipedia


Isotopes are variants of a particular chemical element which differ in neutron number. .... The existence of isotopes was first suggested in 1913 by the radiochemist Frederick Soddy, based on studie...

Why do isotopes exist? | Reference.com


Isotopes exist because the atomic nuclei of many elements are stable or somewhat stable with different numbers of neutrons in them. Because the identity of an ...

How it works - Isotopes - Atoms and Elements, The nucleus and ...


Due to their high levels of radioactivity, they exist only for extremely short periods of time. ... The discovery of these particles, integral to the formation of isotopes, ...



An isotope is one of two or more species of atoms of a chemical element with the ... isotopy might exist in the main group of naturally occurring stable elements.

Mass number and isotopes - A level chemistry


AQA chemistry specification Atomic Structure - Mass number and isotopes.

Were isotopes created from radioactive elements or they exist from ...


All atoms was created, they didn't exists from the beginning. Well, H atoms (one proton and another electron) exists since Universe was warm ...

Chem4Kids.com: Atoms: Isotopes


Isotopes are atoms of elements with different numbers of neutrons We have already learned that ions are atoms that are either missing or have extra electrons.

Isotopes and weighted average


An example of this is shown with the three different isotopes of carbon. ... The isotopes of an element do not occur with equal frequency or amounts. click here for ...

What is an Isotope ? : GCSE Chemistry - IvyRose Holistic


It means that that mass number has been calculated to take into consideration the proportions of the different isotopes of that element believed to exist overall.

Isotopes and Elements - the Atomic Nucleus - Geiger Counter


To explain its function and the forces that occur in the atomic nucleus, we will ... These chemical elements can all occur as isotopes, which vary in their stability.

More Info

Why do isotopes exist? - Chemical Forums


Because they can? If a nucleus can exist with the same number of protons, but different numbers of electrons...then it will at some point ...

isotope | chemistry | Britannica.com


Oct 4, 2010 ... Isotope, one of two or more species of atoms of a chemical element with the same ..... Evidence for the existence of isotopes emerged from two ...

Isotopes - Chemistry LibreTexts


Jul 16, 2015 ... Carbon, for example, has two naturally occurring isotopes, 6 12 C and 6 .... Isotopes of the other elements either occur naturally or are artificially ...