Atoms and Molecules. Atoms Atoms are basic building blocks of matter that make up everyday objects.

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Presentation transcript:

Atoms and Molecules

Atoms Atoms are basic building blocks of matter that make up everyday objects.

Atoms Atoms have three parts. They are Protons, Neutrons, and Electrons.

Electrons Electrons orbit around an atom. In this picture, they are the small yellow bits. They have a negative charge. They are lighter than protons or neutrons.

Protons They are positively charged. Are located in the nucleus. In this picture, the protons are the blue pieces in the center of the atom.

Neutrons Neutrons are neither positive nor negative. Neutrons are in the nucleus of an atom. In this picture, neutrons are the purple pieces in the center of the atom.

An element is a substance made up of only one kind of atom. Elements make up all substances on the earth. Elements

Molecules A molecule is the smallest particle of a substance that exists alone. This is a picture of a water molecule. It is two parts hydrogen and one part oxygen.

Compounds A compound is two or more elements combined together. This is a picture of a salt compound.

Carbon Atom

Chlorophyll Molecule

Sugar Molecule

What are the three parts of an atom?

Name the charge of each part of an atom (whether it’s negative or positive).

What is a water molecule made up of?

Name three things that you can find in your house that are made of compounds.

Which is smaller, elements or compounds?