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A pure substance, specifically an element, would fit that definition.
element
it is the weighted average of the masses of an element's isotopes.
it is the weighted average of the masses of an element's isotopes.
Arsenic
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A pure substance, specifically an element, would fit that definition.
element, specifically an alkali earth metal.
No, borax is not an element. It is composed of elements. Specifically, sodium borate.
A molecule.
Symbol describes an element. It notates name of element.
An isotope of an element that is radioactive
An isotope of an element that is radioactive
element
The number of protons in the nucleus of each atom of the element.
An element is an item that belongs to a set.
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