One of a class of elements having properties intermediate to metals and nonmetals. These are the highly reactive elements located in Group 1 of the periodic table. These elements have one electron in their outer energy level which makes them highly reactive with water and halogens.
These are the reactive elements located in Group 2 of the periodic table. These elements have two electrons in their outer energy level which makes them reactive with water and halogens.
These are the Group 3 or d-block elements. These dense metals with high boiling points can have different oxidation states and all are solid at room temperature with the exception of mercury.
This is a property of solid metals. Capable of being shaped or formed, by hammering or pressure.
This is the first element in the periodic table, atomic number is one. This element combines readily with carbon and oxygen to form the basis for a huge number of organic compounds necessary to life.