Atoms, Elements and Compounds
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Atomic structure and the Periodic Table
SubtopicAtomic structure and the Periodic Table under Atoms, Elements and Compounds for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Why are elements in Group VIII (Noble Gases) generally unreactive?
A.They are all diatomic molecules
B.They have very low boiling points
C.They are found in very small quantities in the air
D.They have a full outer shell of electrons
- 2.
Elements in the same group of the Periodic Table show similar chemical properties because they have the same:
A.Number of electron shells
B.Number of outer-shell electrons
C.Relative atomic mass
D.Total number of electrons
- 3.
The diagram shows the basic organization of an atom. Which labeled parts represent the subatomic particles that contribute to the mass number of the atom?
A.A and B
B.C only
C.A and C
D.B and C
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
SubtopicIsotopes under Atoms, Elements and Compounds for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
An isotope of Chlorine is represented as . How many neutrons are present in the nucleus of this atom?
A.17
B.37
C.54
D.20
- 2.
Why do isotopes of the same element have identical chemical properties?
A.They have the same number of neutrons in the nucleus
B.They have the same number of electrons in the outer shell
C.They have the same nucleon number
D.They have the same total mass
- 3.
Which of the following pairs represent isotopes of the same element?
A.and
B.and
C.and
D.and
Download the worksheet for Atoms, Elements and Compounds - Isotopes to practice offline. It includes additional chapter-level practice questions.
Ions and ionic bonding
SubtopicIons and ionic bonding under Atoms, Elements and Compounds for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Based on the process shown in the diagram, what is the final charge of the particle labeled 'Ion'?
A.Negative charge because it gained a proton
B.Positive charge because it gained an electron
C.Neutral because it shared an electron
D.Positive charge because it lost an electron
- 2.
Which of these pairs of elements is most likely to form an ionic bond?
A.Carbon and Oxygen
B.Sodium and Fluorine
C.Nitrogen and Hydrogen
D.Sulfur and Chlorine
- 3.
What is the correct chemical formula for the ionic compound formed between Magnesium () and Chlorine ()?
A.B.C.D.
Download the worksheet for Atoms, Elements and Compounds - Ions and ionic bonding to practice offline. It includes additional chapter-level practice questions.
Covalent bonding
SubtopicCovalent bonding under Atoms, Elements and Compounds for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Which of these substances is a simple covalent molecule?
A.Sodium chloride ()
B.Magnesium oxide ()
C.Iron ()
D.Hydrogen chloride ()
- 2.
In a single covalent bond, how many electrons are shared between the two atoms?
A.1
B.2
C.3
D.4
- 3.
Between which types of elements does covalent bonding typically occur?
A.A metal and a non-metal
B.Two metal elements
C.Two non-metal elements
D.A noble gas and a transition metal
Download the worksheet for Atoms, Elements and Compounds - Covalent bonding to practice offline. It includes additional chapter-level practice questions.
Metallic bonding
SubtopicMetallic bonding under Atoms, Elements and Compounds for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
In the context of metallic bonding, look at the components represented in the diagram. Which particle is responsible for the attraction that holds the lattice together?
A.The delocalized electrons attracting the positive ions
B.The nucleus of one atom attracting the nucleus of another
C.The repulsion between adjacent positive ions
D.The covalent bond between the metal atoms
- 2.
Why are metals good conductors of electricity?
A.The positive ions are free to move throughout the structure
B.The atoms can vibrate and pass energy to their neighbors
C.The delocalized electrons are free to move through the lattice
D.The protons can carry a charge from one end to the other
- 3.
Metals are often described as being ductile. What does this property mean?
A.They can be hammered into thin sheets
B.They can be drawn into thin wires
C.They make a ringing sound when hit
D.They have very high melting points
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)
SubtopicGiant structures (Graphite, Diamond, Silicon Dioxide) under Atoms, Elements and Compounds for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Unlike most non-metals, graphite is a good conductor of electricity. Why is this possible?
A.It contains metal ions that are free to move.
B.It has a giant ionic lattice structure.
C.Each carbon atom has one delocalized electron not used in covalent bonding.
D.The covalent bonds between the atoms are very weak.
- 2.
What is the ratio of silicon atoms to oxygen atoms in the giant covalent structure of silicon(IV) oxide ()?
A.1:2
B.2:1
C.1:4
D.4:1
- 3.
Graphite is commonly used as a lubricant in machinery. Which property of graphite makes it suitable for this purpose?
A.It has a giant covalent structure.
B.The layers of carbon atoms are held together by weak forces and can slide.
C.It is a form of the element carbon.
D.It has a very high melting and boiling point.
Download the worksheet for Atoms, Elements and Compounds - Giant structures (Graphite, Diamond, Silicon Dioxide) to practice offline. It includes additional chapter-level practice questions.