Metals Capable of reflecting light (luster). Good conductors of heat and electricity. [http://www.bsieducation.org/Education/14-19/topic- areas/applied-science/images/043.jpg]

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Presentation transcript:

Metals Capable of reflecting light (luster). Good conductors of heat and electricity. [ areas/applied-science/images/043.jpg]

Metals Pure metals are held together by metallic bonding. Electrons can travel “between” the atoms. [ her/img/chemistry/energy/bsp/fig01.gif]

Metals All are solids at room temperature (except mercury!) [ olio/text_images/FG10_17-03UN.JPG]

[

Metals Malleable – can be hammered or rolled into sheets. Ductile – can be made into wires.

Alkali Metals Found in group 1 or 1A [

Alkali Metals All have 1 Valence Electron Only exist as pure elements under controlled conditions!!! Most reactive metals on table. ts/kossel_diagrams/Li.jpg [ 16/Instructor_Resources/Chapter_09/FG09_33.JPG] Click here for Alkali Metals & Water Demos

Alkali Metals Are very “soft” and have low density and melting points Usually form compounds with group 17. [ Click here for sodium + chlorine reactivity video

Alkaline Earth Metals Found in group 2 or 2A [

Alkaline Earth Metals All have 2 valence electrons. Can exist as pure elements, because they are less reactive than alkali metals. [ 16/Instructor_Resources/Chapter_09/FG09_34.JPG]

Alkaline Earth Metals Produce bright colors in flame tests. Click here for a Magnesium video clip.

Alkaline Earth Metals This group contains the most abundant metal in our bodies…. Calcium [ ssets/Chapter01/Text_Images/FG01_02-04UN.JPG]

Transition Metals Found in groups 3-12 or the “B” groups of the table [

Transition Metals Occur commonly in nature as pure elements. Form colorful compounds. [

[

[

Transition Metals Many transition metals are made into alloys in order to combine their properties. Metals are melted then mixed together. [ olio/text_images/FG24_09_02UN.JPG]

The purity of gold is determined by the different ratios of gold, copper, and silver present. [

Steel is an alloy of carbon & iron. [

Inner Transition Metals Found at the bottom of the table and belong in periods 6 and 7. [

Inner Transition Metals Very rare elements. Most are radioactive and/or manmade elements. (Especially after Uranium!)