Transition metal

In chemistry, the term transition metal (sometimes also called a transition element) has two possible meanings:

The 40 transition metals

The (loosely defined) transition metals are the forty chemical elements 21 to 30, 39 to 48, 71 to 80, and 103 to 112. The name transition comes from their position in the periodic table of elements. In each of the four periods in which they occur, these elements represent the successive addition of electrons to the d atomic orbitals of the atoms. In this way, the transition metals represent the transition between group 2 elements and group 13 elements.

Related Topics:
Periodic table - Atomic orbital - Group 2 element - Group 13 element

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