Rho 
An element is a pure substance that is made from a single type of atom. Elements are the building blocks for all the matter in the world. Examples of elements include iron, oxygen, hydrogen, gold, and helium.
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An element is a pure substance that is made from a single type of atom. Elements are the building blocks for all the matter in the world. Examples of elements include iron, oxygen, hydrogen, gold, and helium.
Rigel 
Doyen Altair 
Aurora