Chemistry » B. Atomic Structure » B.2. Chemical Symbols on the Periodic Table

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Atomic Number

• Determining the number of protons
• Determining the number of electrons
• Determining element given number of protons or electrons

Mass Number

• Determining the mass number from the numbers of protons and neutrons
• Determining the number of neutrons
• Determining number of all subatomic particles
• Writing symbols given number of subatomic particles

Isotopes

• Determining number of all subatomic particles
• Calculating the average atomic mass

Ions

• Overview
• Determining the number of electrons lost or gained
• Determining the number of all subatomic particles