Who Split the Atom? by Anna Claybourne
Author:Anna Claybourne
Language: eng
Format: epub
ISBN: 9781625133175
Publisher: Britannica Digital Learning
Published: 2015-02-19T00:00:00+00:00
In this simple model of an oxygen atom, you can see the cluster of eight neutrons and eight protons that make up the nucleus.
Isotopes
In 1913, British chemist Frederick Soddy found that atoms of the same element are actually not all identical, as they can have different weights. These different forms of the same atom were named âisotopesâ by Soddyâs cousin, Dr. Margaret Todd. Scientists later found that different isotopes of an atom have different numbers of neutrons. So, for example, oxygen normally has 8 neutrons, but some oxygen atoms have 9 or 10.
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