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Identification of ions by chemical and spectroscopic means key terms

Study Identification of ions by chemical and spectroscopic means with curriculum-aligned Key Terms resources, practice links, and exam-focused support.

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Identification of ions by chemical and spectroscopic means

AqaGcseChemistryChemical analysis

Key terms

  • Flame test

    A qualitative test used to identify metal ions based on the characteristic color of the flame produced when the metal is heated.

  • Metal ion identification

    The process of determining the presence of specific metal ions in a sample using tests such as flame tests.

  • lithium ion

    A metal ion that produces a crimson flame during a flame test.

  • flame test

    A qualitative test used to identify metal ions based on the color of the flame produced.

  • Sodium Ion Flame Test

    A qualitative test that identifies sodium ions by producing a characteristic yellow flame.

  • Flame Colour Observation

    The process of observing the color produced during a flame test to identify specific metal ions.

  • Potassium ion

    A positively charged ion (K+) that produces a lilac flame during a flame test.

  • Flame test

    A qualitative analysis method used to identify metal ions based on the color of the flame produced.

  • Calcium Ion Flame Test

    The test that identifies calcium ions by producing an orange-red flame.

  • Flame Test

    A qualitative test used to identify metal ions based on the color of the flame produced.

  • Copper Ion Flame Test

    The flame test observation indicating the presence of copper ions is a green flame.

  • Flame Test Methodology

    A qualitative test used to identify metal ions based on the characteristic color of the flame produced.

  • Flame test

    A qualitative analysis method used to identify metal ions based on the color of the flame produced when the ion is heated.

  • Metal ion identification

    The process of determining the presence of specific metal ions in a sample by observing flame colors during a flame test.

  • Qualitative test

    A test that gives a characteristic observation, such as a flame colour, but does not provide quantitative data.

  • Flame test observation

    The visual colour produced when a metal ion is heated in a flame, used to identify the ion qualitatively.

  • Flame test

    A qualitative test used to identify metal ions based on the characteristic color of the flame produced when the ion is heated.

  • Safety precautions

    Measures taken to ensure safe handling and use of apparatus during flame tests, including the use of appropriate protective equipment.

  • sodium hydroxide test

    A qualitative test using sodium hydroxide solution to identify the presence of certain metal ions based on the formation of precipitates.

  • metal ion identification

    The process of determining the specific metal ions present in a solution through chemical tests, such as using sodium hydroxide.

  • aluminium ion test

    A qualitative test where aluminium ions form a white precipitate that dissolves in excess sodium hydroxide.

  • sodium hydroxide

    A strong base used in qualitative tests to identify metal ions by forming precipitates.

  • Calcium ions

    Ions that form a white precipitate when reacted with sodium hydroxide.

  • Sodium hydroxide

    A strong base used to test for metal ions by forming precipitates.

  • magnesium ion

    A positively charged ion formed from magnesium, which produces a white precipitate when reacted with sodium hydroxide.

  • sodium hydroxide

    A strong base used in chemical tests to identify metal ions by forming precipitates.

  • Copper(II) ion test

    The test for copper(II) ions using sodium hydroxide, which produces a blue precipitate.

  • Blue precipitate

    The solid formed when copper(II) ions react with sodium hydroxide, indicating the presence of copper(II) ions.

  • iron(II) ions

    Iron(II) ions are positively charged ions that form a green precipitate when reacted with sodium hydroxide.

  • green precipitate

    A green precipitate is the solid formed when iron(II) ions react with sodium hydroxide solution.