On the Periodic Table of Elements, the transition metals are only found in periods 1 to 3 of the table.
A-are only found in families 1 to 2 of the table.
B-allowed to have a positive charge outside of the nucleus.
C-are only found in the lanthanides section of the table.
make up about 60 percent of all known elements.
D-are only found in the actinides section of the table.