Properties of Metals, Nonmetals, and Metalloids Physical Science

Make sure that you included the following on your graphic organizer

Physical Properties Metals Malleable – able to be hammered into thin sheets Ductile- able to be drawn into thin wires Luster- shiny Good Conductors of heat and electricity. Most are solids except for Mercury

Chemical properties of Metals Corrosive-react with oxygen and water React strongly with acids but not bases Form ionic bonds Tend to react with nonmetals

ALKALI METALS group 1 Valence electrons- 1 Good conductors VERY reactive so they are never found alone

ALKALINE EARTH METALS Group 2 Valence electrons- 2 Not found as free elements in nature Uses: Mg in white fireworks, Strontium in red Calcium Phosphate in your body keeps bones strong

Transition Metals Group 3-12 Occur as individual elements Form colored compounds: cobalt= blue cadmium=yellow Magnetic- ____iron____, __nickel_______, __cobalt______ Copper, silver, gold- stable and malleable so we make coins with them

Make sure you included the following in the nonmetals section of your graphic organizer

Physical Properties of Nonmetals Poor Conductors of heat and electricity Luster: very dull Brittle solids Most are gases at room temperature

Physical Properties of Nonmetals Low density Low melting point Hard or soft Various colors

Chemical Properties of Nonmetals Tend to react with metals Form ionic and covalent bonds

halogens Group 17 VERY reactive

Noble Gases Group 18 Stable, nonreactive b/c out energy level is full- inert

Physical Properties of metalloids Metalloids have properties of both metals and non-metals. Can be shiny or dull Semiconductors- conduct heat and electricity better than nonmetals but not as good as metals Where? Zig Zag-line

Physical Properties of metalloids Solid at room temperature Can be ductile or brittle Can be malleable or not