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11 Cards in this Set

  • Front
  • Back
Properties of Metals
-Solid at room temperature
-Malleable & ductile
-High conductivity of electricity & heat
-Hard
-Shiny
Malleable
-Can be bent or hammered into shape without breaking
Ductile
-Can be streched into wires
Bonding in Metals
-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
Alloys
-Complex mixtures of metals designed to improve strength/lightness
How Alloys Work
-Smaller atoms fit into gaps between larger atoms
-This makes it harder for layers of atoms to slide over each other
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
Electron Arrangement
-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'
Ions and Ionic Bonding
-Lithium
-2,1
-Loses the 2
-Has positive charge +1
Ions
-Metals always form + ions
-Non-metals always form - ions
Is it Ionic?
-Soluble in water (not always)
-Solution conducts electricity
-Conducts electricity as a liquid