what comes in groups of 12
Inches in a foot
eggs Pop Beer socks
These are Transition Metals
the groups 3 - 12 are the transition elements, or atleast i'd think so.
Fingers on a hand Pennies in a nickel Sides in a pentagon
Possibly dozens because a dozen is 12
These groups are called Transition elements. They are present in the middle of periodic table.
Transition metals
Groups 3 through 12 are transition elements. Group 2 is alkaline earth metals.
Transition metals are placed in groups 3 to 12.
1 dozen eggs.
Transition metals/nonmetals