100 200 400 300 400 OrangeGreenGreyBlue 300 200 400 200 100 500 100.

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Transcript of 100 200 400 300 400 OrangeGreenGreyBlue 300 200 400 200 100 500 100.

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Ionic bond

when an atom lends one or more electrons to another that receives them.

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Covalent bond

Bond that forms when atoms share electrons

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Atomic number

The periodic table of the elements arranges the elements in order of increasing …..

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metals

Tend to be hard, shiny, and are good conductors of heat and electricity.

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Non-metals

tend to have dull surfaces, are good insulators but poor conductors of heat and electricity

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periods

the horizontal rows on a periodic table

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Families

the vertical columns on a periodic table

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Noble gases

the most stable elements on the periodic table of the elements.

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liquids

Mercury and bromine exist as ________ at room temperature

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gases

Hydrogen and oxygen exist as gases at room temperature

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solids

Copper and lead exist as ______ at room temperature.

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Physical

Length, mass, volume, and density are examples of _________ properties

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chemical

Flammability and corrosiveness are examples of _________ properties

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physcial

Tearing a sheet of paper in half is an example of a __________ change

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chemical

Burning a sheet of paper is an example of a ______ change

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synthesis

A chemical equation in the form of: A + B AB, is an example of a ______ reaction..

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decomposition

A chemical equation in the form of: AB A + B, is an example of a ________ reaction.

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What technique would you use to find the volume ofAn irregularly shaped rock?

Water displacement

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What could you use to separate magnetic iron particles and

non-magnetic sand?

A magnet

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8

Oxygen’s atomic number is 8 and its mass is 16, how many protons does it have?