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11 Cards in this Set
- Front
- Back
Properties of Metals
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-Solid at room temperature
-Malleable & ductile -High conductivity of electricity & heat -Hard -Shiny |
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Malleable
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-Can be bent or hammered into shape without breaking
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Ductile
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-Can be streched into wires
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Bonding in Metals
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-Bonds in metals are strong so need LOTS of energy to break them
-Strong bonds make them hard -Strong bonds mean high boiling and melting points |
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Alloys
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-Complex mixtures of metals designed to improve strength/lightness
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How Alloys Work
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-Smaller atoms fit into gaps between larger atoms
-This makes it harder for layers of atoms to slide over each other |
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7
Li 3 |
-Atomic no.=3
-Mass no.=7 -No. of protons=3 -No. of neutrons=R.A.M-protons=4 -No. of electrons=3 -Relative Atomic Mass (R.A.M)=7 |
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Electron Arrangement
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-2 in the 1st shell
-8 in 2nd+ shells -The no. electrons in the outer shell is the same as group no. -Known as 'electron configuration' |
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Ions and Ionic Bonding
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-Lithium
-2,1 -Loses the 2 -Has positive charge +1 |
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Ions
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-Metals always form + ions
-Non-metals always form - ions |
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Is it Ionic?
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-Soluble in water (not always)
-Solution conducts electricity -Conducts electricity as a liquid |