•
the vertical groups are
called families or simply
“
groups
”
•
numbered 1-18, or by A
and B groups
•
group 1 =
alkali metals
•
group 2 =
alkaline earth
metals
•
group 17 =
halogens
•
group 18 =
noble gases
•
group 3-12 =
transition
metals
•
know them!