Chemistry Vocabulary Introduction to Chemistry

The smallest building block of matter. Is one of the 118 elements.

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Anything that has a mass and takes up space, no matter how small

The study of the properties, composition and structure of matter

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When one or more atoms of the same element are bonded together

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What is the smallest unit of an element that retains the properties of that element?

• Molecule

• Atom

• Compound

• Mixture

A definition of Chemistry

• The study of atoms and the building blocks of nature

• The study of the atom

• The study of matter and the changes it undergoes

• The experimental science of combining matter

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What is the main difference between a compound and a mixture?

• Compounds are made of one type of atom, mixtures are not

• Compounds are chemically combined, mixtures are physically combined

• Compounds can be separated by physical means, mixtures cannot

• Compounds are always solids, mixtures are always liquids

A species of atom with unique properties and characteristics due to the number of protons it has

When one or more atoms of different elements are bonded together

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a characteristic or behavior of a substance that may be observed when it undergoes a chemical change or reaction (ex. combustibility)

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