Transition metals can use the two outermost shells/orbitals to bond with other elements.
Predominantly transition metals.
The metallic elements in the Periodic Table includes the alkali metals, alkaline earth metals, transition metals, post-transition metals, Lanthanides, actinides, and other elements that are considered metal. You can refer to the metallic elements in Wikipedia for the full details of which elements belong to this classification.
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Transition elements contain 2 outermost shells incompleted including the valence shell. But when it reacts with other, it shares,gives or accepts elctrons from its inner shells.
non-metals .... alkali metals....transition metals....alkali earth metals....rare earth metals....other metals....halogens....inert elements
Most elements are metals, including alkali metals, alkaline earth metals, transition metals, basic metals, and rare earth elements. There are three (3) Metallic elements that start with the letter "I". These metals are are Iron (Fe) and Iridium (Ir), transition metals, and; Indium (In), classified as an "other metal".
There are eight classifications of elements in the periodic table. They are: Non-metals, transition metals, rare earth metals, halogens, alkali metals, alkali earth metals, other metals and inert elements.
So-called NON-transition metals is not a defined group of elements, other than "All other elements that are NOT transition elements".
Inner transition metals (inner transition elements)F-block
All the transition state metals can be found in the clearly marked central portion of the Periodic Table of elements, but I will tell you that most of the well-known metals, such as iron, copper, gold, lead, zinc, nickel, chromium, platinum, etc., are transition state elements. The only really well known metal that is not a transition state element is aluminum. Other metals such as calcium or sodium are also not transition state elements, but they are not often encountered in their metallic form, they are encountered in compounds such as salt. Metals that we encounter in metallic form are almost always transition state elements.
Metals (and also transition metals are considered even though they aren't in specific families, they are the same as any other metal, nothing special.)
They lose electrons, not elements. These are metals. Group I metals (IA or alkali metals), Group 2 metals (IIA or alkaline earth metals), transition metals (groups 3 thru 12), and all other metals.