Chemistry Vocab Pt1

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10 Terms

1
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Element

A substance that cannot be separated or broken down into simpler

substances by chemical means.

2
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Compound

A substance made up of atoms of two or more different elements

joined by chemical bonds.

3
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Chemical Symbol

A one-, two-, or three-letter abbreviation of the name of an

element.

4
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Chemical Formula

A combination of chemical symbols and numbers to

represent a substance.

5
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Atom

The smallest unit of an element that maintains the properties of that

element.

6
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Molecule

A group of atoms that are held together by chemical forces; a

molecule is the smallest unit of a compound that keeps all the properties of that

compound.

7
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Periodic Table

An arrangement of the elements in order of their atomic

numbers such that elements with similar properties fall in the same column, or

group.

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Pure Subtance

A sample of matter, either a single element or a single

compound, that has definite chemical and physical properties.

9
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Structure

What something looks like or how its made.

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Function

What something’s purpose is or what it does