13 terms

Elements, Compounds, and Mixtures

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monoatomic element (definition)
pure substance that consists entirely of one atom
compound molecule (definition)
two or more elements that are chemically combined
mixture (definition)
if the composition of a material may vary, the material is a mixture; substances keep their properties
example of monoatomic element
Na
example of compound molecule
C6H12O6
example of mixture
H2O + vegetable oil
picture of element
picture of compound molecule
picture of mixture
diatomic elements (definition)
Elements that exists as two atom molecules
example of diatomic elements
H2, O2, N2
Elemental molecules (definition)
contain two or more atoms of the same element
example of elemental molecules
S8, H4, O2
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