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Published byKristian Richardson Modified over 9 years ago
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Notes 4-3 and 4-4 Metals, Nonmetals, Inert Gases and Semimetals
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Metals Physical Properties Malleable Magnetic Ductile Thermal conductivity Electrical conductivity Chemical Properties Reactive Corrosive
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Types of Metals Most of the Periodic Table is made up of metals!!! Alkali Metals – Group 1; most reactive group of elements Alkaline Earth Metals – Group 2 Transition Metals – Groups 3-12 Metals in Mixed Groups – Groups 13-15 Special Cases: Lanthanides – Similar properties to Group 2 elements Antinides – most created artificially in labs; unstable nuclei Synthetic Elements – atomic numbers higher than 92; made by scientists by forcing nuclear particles to crash into one another
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Nonmetals
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Inert Gases Group 18!!! Tend to be UNreactive
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Hydrogen Element with the simplest atoms Very different from atoms of other elements so not in a family Makes up more than 90% of the atoms in the universe Makes up only 1% of Earth’s crust Rarely found on Earth in its pure form Most hydrogen is combined with oxygen in water
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Semimetals Also called metalloids Some of the properties of both metals and nonmetals Most useful property is their ability to conduct electric currents
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