2024-02-28T22:10:58+03:00[Europe/Moscow] en true <p>Filtration</p>, <p>Use for crystalssion and PRACTICAL</p>, <p>State symbols</p>, <p>Distillation</p>, <p>Alpha scattering experiment</p>, <p>Proton, neutron, electron relative charge n mass</p>, <p>Atomic number shows the amount of ___ </p>, <p>Mass numbers shows the amount of ____ and ___ added together</p>, <p>RELATIVE ATOMIC MASS FORMULA</p>, <p>What did Mendeleev do in his table and how did he order</p>, <p>Noble gases are very ____ elements</p>, <p>Why are they unreactive</p>, <p>2 reaction with group1 and water</p>, <p>Most reactive in group 7 and group 1</p> flashcards

Chemistry Paper 1 - Atomic Structures

CHEMISTRY PAPER 1

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  • Filtration

    Used for separating insoluble solids from a solution:

    Place a filter funnel with filter paper in a conical flask

    Pour the solution into the funnel and the filtrate will go to the conical flask and the solids will stay in the funnel

  • Use for crystalssion and PRACTICAL

    Used for separating a soluble solid from a solution:

    Heat the solution in an evaporating basin, resulting in crystals and then cool. Next, use filtration to separate the crystals

  • State symbols

    solid (s) liquid (l) gas (g) dissolved in water (aq)

  • Distillation

    Heat the liquid to evaporate it then cool the vapour with a condenser to condense it back to the liquid

  • Alpha scattering experiment

    Scientists fired alpha particles at gold foil, most pass straight through without direction change, some changed direction and some bounced back.

  • Proton, neutron, electron relative charge n mass

    Proton: 1 1

    Neutron: 0 1

    Electron -1 very small

  • Atomic number shows the amount of ___

    protons

  • Mass numbers shows the amount of ____ and ___ added together

    protons and neutrons added together

  • RELATIVE ATOMIC MASS FORMULA

    (mass of isotope 1 x isotope 1 abundance) + (mass of isotope 2 x isotope 2 abundance) / 100

  • What did Mendeleev do in his table and how did he order

    left gaps and ordered by atomic weight

  • Noble gases are very ____ elements

    unreactive

  • Why are they unreactive

    they have a full outer shell

  • 2 reaction with group1 and water

    Fizzing and gas produced

  • Most reactive in group 7 and group 1

    Fluorine and Francium