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Atoms, Elements and Compounds

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Atomic structure and the Periodic Table

Subtopic

Atomic structure and the Periodic Table under Atoms, Elements and Compounds for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the correct symbol for the element Copper?

    A.

    C

    B.

    Co

    C.

    Cu

    D.

    Cp

  2. 2.

    Which noble gas is used to provide an inert atmosphere in light bulbs?

    A.

    Helium

    B.

    Neon

    C.

    Argon

    D.

    Krypton

  3. 3.

    Why is an atom electrically neutral?

    A.

    It has no charged particles.

    B.

    The number of protons equals the number of neutrons.

    C.

    The number of protons equals the number of electrons.

    D.

    The neutrons cancel out the protons.

Download the worksheet for Atoms, Elements and Compounds - Atomic structure and the Periodic Table to practice offline. It includes additional chapter-level practice questions.

Isotopes

Subtopic

Isotopes under Atoms, Elements and Compounds for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following is a characteristic of all isotopes of the same element?

    A.

    Identical mass number

    B.

    Identical number of neutrons

    C.

    Identical atomic number

    D.

    Identical radioactive stability

  2. 2.

    Which isotope has 12 protons and 12 neutrons?

    A.

    1224Mg^{24}_{12}Mg

    B.

    612C^{12}_{6}C

    C.

    1124Na^{24}_{11}Na

    D.

    1212X^{12}_{12}X

  3. 3.

    The isotopes of Neon are 20Ne^{20}Ne, 21Ne^{21}Ne, and 22Ne^{22}Ne. Which of the following is the same for all three?

    A.

    The number of neutrons

    B.

    The mass number

    C.

    The number of protons

    D.

    The density

Download the worksheet for Atoms, Elements and Compounds - Isotopes to practice offline. It includes additional chapter-level practice questions.

Ions and ionic bonding

Subtopic

Ions and ionic bonding under Atoms, Elements and Compounds for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the chemical formula for Silver Chloride?

    A.

    AgClAgCl

    B.

    Ag2ClAg_2Cl

    C.

    AgCl2AgCl_2

    D.

    SiClSiCl

  2. 2.

    Which group in the Periodic Table contains elements that do not usually form ions?

    A.

    Group I

    B.

    Group VII

    C.

    Group VIII (Noble gases)

    D.

    Group II

  3. 3.

    What is the valency of Aluminum?

    A.

    1

    B.

    2

    C.

    3

    D.

    4

Download the worksheet for Atoms, Elements and Compounds - Ions and ionic bonding to practice offline. It includes additional chapter-level practice questions.

Covalent bonding

Subtopic

Covalent bonding under Atoms, Elements and Compounds for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Why do noble gases like Neon not typically form covalent bonds?

    A.

    They have too many protons

    B.

    They already have a full outer shell of electrons

    C.

    They are too small

    D.

    They are metals

  2. 2.

    What is the total number of valence electrons in a single molecule of water (H2OH_2O)?

    A.

    6

    B.

    8

    C.

    10

    D.

    12

  3. 3.

    Which property is shared by both diamond and graphite?

    A.

    They both conduct electricity

    B.

    They both have very high melting points

    C.

    They are both very soft

    D.

    They both have a simple molecular structure

Download the worksheet for Atoms, Elements and Compounds - Covalent bonding to practice offline. It includes additional chapter-level practice questions.

Metallic bonding

Subtopic

Metallic bonding under Atoms, Elements and Compounds for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What happens to the delocalized electrons when an electric potential (voltage) is applied?

    A.

    They stop moving

    B.

    They flow toward the positive terminal

    C.

    They flow toward the negative terminal

    D.

    They turn into positive ions

  2. 2.

    Which of these metals would likely have the highest melting point based on its group?

    A.

    Potassium (Group 1)

    B.

    Sodium (Group 1)

    C.

    Magnesium (Group 2)

    D.

    Cesium (Group 1)

  3. 3.

    In a metallic lattice, the positive ions are also known as:

    A.

    Anions

    B.

    Cations

    C.

    Isotopes

    D.

    Allotropes

Download the worksheet for Atoms, Elements and Compounds - Metallic bonding to practice offline. It includes additional chapter-level practice questions.

Giant structures (Graphite, Diamond, Silicon Dioxide)

Subtopic

Giant structures (Graphite, Diamond, Silicon Dioxide) under Atoms, Elements and Compounds for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the ratio of carbon atoms to other carbon atoms in a diamond crystal?

    A.

    1:1

    B.

    1:2

    C.

    1:3

    D.

    1:4

  2. 2.

    Which of the following is true about the atoms in graphite?

    A.

    They are arranged in a random way.

    B.

    They are arranged in layers of hexagons.

    C.

    They are arranged in a cubic shape.

    D.

    They are not bonded to each other.

  3. 3.

    What type of bond is formed when silicon reacts with oxygen to form silica?

    A.

    Ionic

    B.

    Covalent

    C.

    Metallic

    D.

    Dative

Download the worksheet for Atoms, Elements and Compounds - Giant structures (Graphite, Diamond, Silicon Dioxide) to practice offline. It includes additional chapter-level practice questions.

Atoms, Elements and Compounds - Grade 11 Chemistry (IGCSE) | Krit.club