Atoms & Equations

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  • Created by: Chloe
  • Created on: 22-11-12 17:12
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  • Atoms & Equations
    • Flame Test
      • Potassium (K) = Lilac
      • Sodium (Na) = Yellow
      • Calcium (Ca) = Brick Red
      • Copper (Cu) = Blue/Green
      • Lithium (Li) = Reddish Orange
      • Barium (Ba)  = Apple Green
    • Atomic Structures
      • Protons
        • Are in the nucleus of the atom
          • Neutrons
            • Atomic Structures
              • Protons
                • Are in the nucleus of the atom
                  • Neutrons
                    • No charge (Neutral)
                    • Has a mass of 1
                    • Made from two down quarks and one up quark.
                    • Relative Atomic Mass = number of Protons+ number of Neutrons
                  • Positively Charged particle.
                  • Proton number= Electron number
                  • Made from two Up quarks and one down
                • Electrons
                  • A charge of -1
                  • Mass of an electron is practically 0
                  • In the shells that orbit the nucleus of the atom
                  • Electronic configuration
                    • 2.8.8.1 would mean the element is in group 1 in the periodic table
                    • 2.8.8.5 would mean the element is in group 5
              • No charge (Neutral)
              • Has a mass of 1
              • Made from two down quarks and one up quark.
              • Relative Atomic Mass = number of Protons+ number of Neutrons
            • Positively Charged particle.
            • Proton number= Electron number
            • Made from two Up quarks and one down
          • Electrons
            • A charge of -1
            • Mass of an electron is practically 0
            • In the shells that orbit the nucleus of the atom
            • Electronic configuration
              • 2.8.8.1 would mean the element is in group 1 in the periodic table
              • 2.8.8.5 would mean the element is in group 5
        • Balancing Equations
          • Take Potassium + Water --> Potassium Hydroxide + Hydrogen, for example
            • K + H2O --> KOH + H2
              • Separate each side of the equation like so.
                • There is 1 K, 2 H's and 1 O
                  • There is one more hydrogen on the one side of the equation. So a 2 must be put in front of the H2O, making 2H2O 
                    • 2H2O But then we have two oxygens as well on the left side so a two must be put in front of the KOH making 2KOH. 
                      • Then we have 2 potassiums on the right and only one on the left so a 2 must be put in front of the K becoming 2K. 
                        • 2K + 2H2O ------>2KOH + H2
                • There is 1 K, 3 H's and 1 O
          • More Examples?
            • 2Na + Cl2 --> 2NaCl
            • Na + Cl2 --> NaCl
            • Na + Br2 --> NaBr
              • 2Na + Br2 --> 2NaBr
            • Cl2+ NaBr --> NaCl+ Br
              • Cl2 + 2NaBr--> 2NaCl + 2Br

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