Fundermentals

Fundermentals

1. The sum of protons and neutrons in an atom is its mass number

   • Mg 12+12 =24 mass number

2. Elements consist of one type of atom

3. Atoms

4. Elements-on the periodic table and contain only one type of atom

5. Compounds-2 or more elements chemically bonded

6. Protons,Neutrons,Electrons

   • The number of protons is equal to the number of electrons

7. Mixture-2 or more elements or compounds physically mixed (not chemically bonded)

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