Metals

Alloys

a mixture of metals is called an alloy

useful alloys combine the best properties of two or more metals into a single substance

Metals in the Periodic Table

the metals in a group, or family, have similar properties and these family properties change gradually as you move across the table

Keegan Davis 11/10/19

metals tend to become less reactive as you move from left to right across the periodic table

Alkali Metals

metals in group 1, from lithium to francium, are called the alkali metals

most reactive metals of all

never found uncombined in nature

have 1 valence electron that is easily transferred to other atoms during chemical change

when the valence electron is gone, the part of the atom that remains is much more stable

Alkaline Earth Metals

group 2 contains the alkaline earth metals

not as reactive as the alkali metals, but more reactive than most metals

never found uncombined in nature, each is fairly hard, gray-white, and a good conductor of electricity

each atom of an alkaline metal has two valence electrons

Transition Metals

elements in groups 3 through 12 are called transition metals

so similar to one another that differences between nearby columns are often difficult to detect

fairly stable, reacting slowly or not at all with air and water

Metals in Mixed Groups

Lanthanides and Actinides

groups 13 through 16 include metals, nonmetals, and metalloids

metals in these groups to the right of transition metals are not nearly as reactive as those on the left side of the table

actinides in periods 6 and 7 between alkaline earth metals and the transition metals

lanthanides are soft, malleable, shiny metals with high conductivity