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Metals (Metals in the Periodic Table (Lanthanides and Actinides (actinides…
Metals
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
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
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
never found uncombined in nature
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
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
Lanthanides and Actinides
actinides in periods 6 and 7 between alkaline earth metals and the transition metals
lanthanides are soft, malleable, shiny metals with high conductivity
Alloys
a mixture of metals is called an alloy
useful alloys combine the best properties of two or more metals into a single substance
Keegan Davis 11/10/19