Periodic Table
What is the center of the atom called?
Nucleus
The 2nd family on the table - Group 2?
Alkaline Earth Metals
What family has 7 valence electrons?
Halogens
How do you find an element's mass number?
Add the number of neutrons and the number of protons together
What family is K (potassium) in?
Alkali metals
This family is inert?
Noble Gases
Figure out the number of electrons for each level for IRON
2) 8) 16)
What do families on the periodic table have in common?
Same number of valence electrons