Periodic Table of Elements (Organization)

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Presentation transcript:

Periodic Table of Elements (Organization)

Types of Elements Metals Non-Metals Metalloids

Alkali Metals: Group 1 These metals are so reactive that they are never found as uncombined elements in nature.

Alkaline Earth Metals: Group 2 Alkaline Earth Metals are not as reactive as the metals in Group 1, but they are more reactive than most metals.

Transition Metals: Groups 3 -12

Metals in Mixed Groups

Lanthanides: First row of elements placed below the main part of the periodic table.

Actinides: The elements below the lanthanides

Non-Metals: PHYSICAL PROPERTIES CHEMICAL PROPERTIES Poor conductors of electricity and heat Reactive with other elements 10 out of the 16 nonmetals are gases at room temperature Dull Not shiny Brittle (not malleable or ductile)

Carbon Family: Group 14 Only Carbon, in the Carbon Family, is a nonmetal.

Nitrogen Family: Group 15 Nitrogen Family contains two nonmetals: Nitrogen and Phosphorus

Oxygen Family: Group 16 The Oxygen Family contains three nonmetals: Oxygen, Sulfur, and Selenium.

Halogen Family: Group 17 Halogen = salt forming All but Astatine are nonmetals

Noble Gases: Group 18

Hydrogen: the simplest and smallest atom in the Periodic Table of Elements Because the chemical properties of Hydrogen differ very much from those of the other elements, it really cannot be grouped into a family.

Metalloids METALLOIDS HAVE SOME CHARACTERISTICS OF BOTH METALS AND NONMETALS SOLIDS ARE ROOM TEMPERATURE BRITTLE HARD SOMEWHAT REACTIVE