Periodic Table

Periodic Table

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Subatomic Particles

1. Protons

   1. Positive charge: +1
   2.  p+
   3. Have mass
   4. Found in the nucleus

2. Neutrons

   1. No charge 
   2. n0
   3. Have mass
   4. Found in the nucleus

3. Electrons

   1. Negative charge: -1
   2. e-
   3. little to no Mass
   4. In the empty space of the atom

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Atomic Mass: (decimal form) collective mass of p+ and no

• The atomic mass has to be rounded 

Atomic Number:  (whole number) total number of protons  or  electrons

Atomic Mass - Atomic Number = # of Neutrons

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