Matter and Its Interactions LC1 Review

1. ​Matter is anything with mass and volume.

2. ​Matter is EVERYTHING.

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• ​Atoms are the building blocks of matter.

• ​Atoms are made up of 3 subatomic particles.

  • ​Protons: Positive particle in the nucleus.

  • ​Neutrons: No charge particle in the nucleus.

  • ​Electrons: Negative particle in the Electron Cloud.

​There are two types of molecules.

1. ​Elements: Made up of one type of atom bonded together.

2. ​Compounds: Made up of two or more types of atoms bonded together.

​Molecules are written in chemical formulas.

1. ​Each atom has a capital letter or a capital letter followed by a lower case letter.

2. ​A subscript is a number written to the right of the atom.

3. ​A coefficient is a number written to the left of the entire molecule.

1. ​​Molecules: When two or more atoms bond together.

1. ​Extended Structures: When molecules bond together to form a repeating pattern.