The Periodic Table

Descrição

Chemistry Mapa Mental sobre The Periodic Table, criado por Shravani Chingre em 11-06-2018.
Shravani Chingre
Mapa Mental por Shravani Chingre, atualizado more than 1 year ago
Shravani Chingre
Criado por Shravani Chingre aproximadamente 6 anos atrás
10
1

Resumo de Recurso

The Periodic Table
  1. Describe the way the Periodic Table
    1. Periodic Table classifies elements in order of atomic (proton) number
    2. Use the Periodic Table to predict properties of elements by means of groups and periods
      1. Colomns are the groups.
        1. Rows are Periods
        2. Describe the change from metallic to non-metallic character across a period
          1. The zigzag line
          2. Describe the relationship between Group number, number of valency electrons
            1. The group number is same as the number of outer-shell electrons.
            2. Describe lithium, sodium and potassium in Group I
              1. ~ metal floats, so less dense than water ~fizzing indicates a gas is given off ~the molten ball (not Li) indicates highly exothermic reaction ~lilac flame (K) indicates very exothermic reaction because the hydrogen gas is given off ignites
              2. Predict the properties of other elements in Group I, given data, where appropriate
                1. Describe the trends in properties of chlorine, bromine and iodine in Group VII
                  1. Predict the properties of other elements in Group VII, given data where appropriate
                    1. Describe the noble gases as being unreactive
                      1. They have a stable outer shell of electrons.
                      2. Describe the uses of the noble gases in providing an inert atmosphere
                        1. argon in lamps, helium for filling balloons
                        2. Describe the transition elements
                          1. collection of metals having high densities, high melting points and forming coloured compounds, and which, as elements and compounds, often act as catalysts

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