Any element in any of the series of elements with atomic numbers 21-29-39-47-57-79 and 90-107. That in a given an inner orbital has less than a full quota of electrons. Also known as Transition Metals.
If you were to look in the picture above the definition you will see that there is a picture of a periodic table. Now the Red is the Transition Metals.
If you were to look in the picture above the definition you will see that there is a picture of a periodic table. Now the Red is the Transition Metals.