Ions & Ionic Bonds (Cambridge (CIE) IGCSE Chemistry)

Exam Questions

3 hours38 questions
11 mark

What change occurs to an atom when it forms a negative ion?

  • It loses electrons.

  • It gains protons.

  • It gains electrons.

  • It loses protons.

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21 mark

Lithium and chlorine react together to form lithium chloride. During formation, each lithium atom…..1….. one …..2….. which is completely …..3….. to the chlorine atom.

What words correctly fill gaps 1, 2 and 3?

 

1

2

3

A

gains

electron

shared

B

loses

electron

transferred

C

gains

proton

transferred

D

loses

proton

shared

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    31 mark

    Which of the statements describes ionic bonding?

    • Electrostatic attraction between atoms

    • Electrostatic attraction between positively charged particles and delocalised electrons

    • Electrostatic attraction between oppositely charged ions

    • Electrostatic attraction between the nuclei of two atoms and a shared pair of electrons

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    41 mark

    Extended Only

    The structure of an ionic compound, sodium chloride, is a lattice structure.

    Which of the following statements about an ionic lattice structure is not true?

    • There is a regular arrangement of ions in the lattice

    • The layers of ions slide over each other easily in the lattice

    • The ions are arranged with alternating anions and cations

    • Strong electrostatic forces of attraction occur between oppositely charged ions

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    51 mark

    Extended Only

    Magnesium is a Group II element and chlorine is a Group VII element.

    These elements react together to form an ionic compound.

    Which row is correct?

     

    Mg electron change

    Mg ion formed

    Formula of compound

    A

    gain

    Mg2+

    Mg2Cl

    B

    gain

    Mg+

    MgCl2

    C

    lost

    Mg2+

    MgCl2

    D

    lost

    Mg+

    Mg2Cl2

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      11 mark

      Which element does not form a stable ion with the same electronic configuration as neon?

      • Magnesium

      • Fluorine

      • Sodium

      • Chlorine

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      21 mark

      The electronic configuration of an ion was determined to be 2.8.8.

      What could the identity of the ion be?

       

      Ca2+

      S2-

      A

      cross times

      ✓

      B

      ✓

      cross times

      C

      ✓

      ✓

      D

      cross times

      cross times

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        31 mark

        The table below shows the properties of four substances, W, X, Y and Z.

        Substance

        Melting point

        Boiling point 

        Conducts electricity when

         

        / o C

        / o C

        solid 

        liquid

        W

        3410

        5930

        yes

        yes

        X

        801

        1413

        no

        yes

        Y

        3550

        4830

        no

        no

        Z

        -91

        98

        no

        no

        Use the information in the table to identify the substance that is an ionic compound.

        • Substance W

        • Substance X

        • Substance Y

        • Substance Z

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        41 mark

        Extended Only

        Calcium reacts with fluorine to form calcium fluoride

        Which statement describes what happens to calcium atoms in this reaction?

        • Calcium ions lose electrons to form positive charges. .

        • Calcium atoms gain 3 electrons to form positive ions.

        • Calcium ions gain 2 electrons to form positive ions.

        • Calcium atoms lose 2 electrons to form positive ions.

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        51 mark

        Extended Only

        Which of the following dot-and-cross diagrams shows the correct arrangement of electrons in lithium sulfide?

        1-6-q3-edexcel-igcse-chemistry-

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          11 mark

          Ionic compounds are formed when a metal reacts with a nonmetal.

          Which two elements combine to form this kind of compound?

          Element

          Electronic structure

          Q

          2.4

          R

          2.8

          S

          2.8.1

          T

          2.8.7

          • S and T

          • R and S

          • Q and R

          • Q and T

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          21 mark

          The electronic structures of atoms X and Y are shown.

          q2--2-2-mcq-hard-cie-igcse-chemistry

          X and Y combine by ionic bonding.

          What is the formula of the compound produced?

          • X2Y

          • X2Y2

          • X2Y4

          • XY

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          31 mark

          The electronic structures of atoms X and Y are shown.

          q3--2-2-mcq-hard-cie-igcse-chemistry

          X and Y combine by ionic bonding.

          What is the formula of the compound produced?

          • X2Y

          • X2Y2

          • X2Y4

          • XY

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          41 mark

          Ionic compounds are formed when metals react with nonmetals.

          Which row correctly describes the electron transfer when an ionic bond is formed and the nature of the bond?

           

          Electron transfer

          Nature of bond

          A

          Metal to nonmetal

          Opposite ions attract

          B

          Metal to nonmetal

          Opposite ions repel

          C

          Metal to metal

          Same ions repel

          D

          Nonmetal to metal

          Opposite ions attract

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            51 mark

            Ionic compounds are formed when a metal reacts with a nonmetal.

            Which two elements combine to form this kind of compound?

            Element

            Electronic structure

            Q

            2.8.8.1

            R

            2.8.7

            S

            2.8.4

            T

            2.8.8

            • Q and T

            • Q and R

            • R and S

            • S and T

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            61 mark

            Potassium and bromine chemically combine to form the compound potassium bromide.

            During formation, each bromine atom…..1….. one electron which is completely …..2….. from the outer shell of the potassium atom. The …..3….. force of attraction is formed from the attraction between the opposite charges on each ion.

            What words correctly fill gaps 1, 2 and 3?

             

            1

            2

            3

            A

            loses

            shared

            electrical

            B

            loses

            transferred

            intermolecular

            C

            gains

            shared

            electrostatic

            D

            gains

            transferred

            electrostatic

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              71 mark

              The table below shows four different substances.

              Which substance does the type of bonding shown not match?

               

              Substance

              Type of bonding present

              Ionic

              Covalent

              Metallic

              A

              Fluorine

               

              ✓

               

              B

              Potassium chloride

              ✓

               

               

              C

              Beryllium

               

              ✓

               

              D

              Sodium bromide

              ✓

               

               

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                81 mark

                Extended Only

                The bonding present in a substance determines the structure and properties of that substance.

                Which of the following statements is a correct description of the structure of an ionic compound?

                • A lattice structure with an irregular arrangement of alternating positive and negative ions

                • A lattice structure with a regular arrangement of alternating positive and negative ions

                • A random structure with a regular arrangement of alternating positive and negative ions

                • A random structure with an irregular arrangement of alternating positive and negative ions

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                91 mark

                Extended Only

                The ionic lattice structure of potassium chloride is shown below.

                q9--2-2-mcq-hard-cie-igcse-chemistry

                Which of the following statements best describes the bonding and structure of KCl?

                • A small lattice structure held together by electrostatic forces between oppositely charged ions which act in all directions.

                • A small lattice structure held together by electrostatic forces between like charged ions which act in all directions.

                • A giant lattice structure held together by electrostatic forces between oppositely charged ions which act in all directions.

                • A giant lattice structure held together by electrostatic forces between oppositely charged ions which act in one direction only.

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                101 mark

                Extended Only

                A student analysed an ionic compound and a covalent compound using a melting point apparatus. She found the ionic compound had a much higher melting point than the covalent compound.

                Which statement explains this observation?

                • Ionic compounds are formed from metals only.

                • Ionic compounds are formed from nonmetals and nonmetals.

                • There are strong electrostatic forces of attraction in ionic compounds.

                • There are strong intermolecular forces in ionic compounds.

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