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# MNM & Density Review

### Metals Nonmetals Metalloids & Density Test Review

Shiny luster, malleable and a good conductor are physical properties of metals
Shiny or dull, brittle or malleable and a semiconductor are all physical properties of metalloids
Dull in luster, brittle and insulators are physical properties that belong to the nonmetals
An element that breaks into pieces when hammered has the physical property described as brittle
How an element transfers heat and electricity is called conductivity
A poor conductor of heat and electricity is known as an insulator
Insulators are categorized as nonmetals
Semiconductors are categorized as metalloids
Good conductors are categorized as metals
Gases belong to the group of nonmetals
How an element's surface reflects light is the physical property of luster
A physical property of metals which enables the metal to be pulled or stretched into wires is called ductile
Conductivity, malleability and luster are all physical properties
The most reliable test for determining if an unknown element is a metal, nonmetal or metalloid is the conductivity test
Electronics and computers are made with semiconductors
Mass divided by volume is the formula for density
Density is the amount of mass in a given volume
An object will sink in water if its density is _____ than 1g/cubic centimeter. greater
An object will float in water if its density is _____ than 1g/cubic centimeter. less
Oil and ice have densities that are less than water, so they will both float
Archimedes Principle involves finding volume using displacement
One gram/milliliter is equal to one gram/ cubic centimeter
Mass is 100g. Volume is 400 mL. To find density, you will _______________ 100 by 400. divide
Created by: cmpace