Molecules, Elements, and Compounds

What is a compound?

• A molecule that is formed from two different elements/atoms.

• A molecule that is formed from two or more of the same element/atom.

• A tiny atom that makes up an atom.

• The center of an atom that is formed by neutrons. protons, and electrons.

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Is this an atom or molecule?

• atom

• molecule

Answer explanation

Molecules are more than one atom stuck together. Each atom is an ELEMENT

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Elements are made of all the ________ type of atom.

Answer explanation

Elements are PURE substances. They are only made of one type of atom.

When a molecule is made of DIFFERENT types of atoms, it is called a _____________.

• element

• compound

Answer explanation

Molecules with more than one element (or type of atom) in them are called compounds. Think of a compound sentence, which is two DIFFERENT sentences joined together...

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Is this a compound or element?

• compound

• element

Answer explanation

This is the compound Carbon Dioxide (what we breathe out). It is made of the elements Carbon and Oxygen.

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Is this a compound or element?

• compound

• element

Answer explanation

This is a molecule of chlorine - which is an element. When a molecule is only made of one type of atom, it is an element.

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The smallest particle of an element; made of electrons, protons, and neutrons

• Molecule
• Compound
• Atom
• Ion

Tags

Science 6.5A

• Element
• Compound

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• Element
• Compound

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NGSS.MS-PS1-1

• Element
• Compound

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