Families
The name of the 1st family.
Alkali metals
Found along the zigzag line.
Metalloids
Number of valence electrons in group 2.
2 valence electrons
Periodic symbol is Fe
Iron
Inventor of the periodic table.
Dmitri Mendeleev
Mostly found on the left side of the periodic table.
Metals
Number of valence electrons in group 1.
1 valence electron
Periodic symbol is C
Carbon
Group are set up by this.
By number of valence electrons
The name of the 2nd family.
Alkaline earth metals
Mostly found on the right side of the periodic table.
Non metals
Number of valence electrons in group 14.
4 valence electrons
Periodic symbol is O
Oxygen
Periods are set up by this.
By atomic number increasing from left to right
The name of the 15th family.
Nitrogen family
Has the most of them on the periodic table.
Number of valence electrons in group 17.
7 valence electrons
Periodic symbol is Au
Gold
They year the periodic table was made.
1869
Family name with the most families.
Transition metals
Only non metal on the metals side.
Hydrogen
Groups with no definite amount of valence electrons.
Transition metals/groups 3-12
Periodic symbol is K
Potassium
Only two liquids on the periodic table.
Mercury and Bromine