Using the Periodic Table
to Determine Element Properties

Atomic Number = #protons in an atom

Mass Number = #protons + #neutrons in an atom

Describe how you determine the number of protons, neutrons, and electrons found in an element's atoms:

#Protons?

#Neutrons?

#Electrons?

Please give the number of protons, neutrons, and electrons fro each of the following elements:

Element Atomic # Mass # Protons Neutrons Electrons #Electrons in 1st Level #Electrons in 2nd Level #Electrons in 3rd Level
Beryllium                
Boron                
Chromium                
Hydrogen                
Oxygen                
Nitrogen                

Draw electron dot diagrams fro Carbon, Hydrogen, Oxygen, and Nitrogen:

Carbon

Hydrogen

Oxygen

Nitrogen