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Enter a topic and grade level to get standards-aligned visual questions as a PDF with an answer key.
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- Aligned with curriculum standards
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A real example made with Madlen
The examples below were generated in Madlen.
Grade 9 Chemistry
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Based on the diagram shown, which represents the internal arrangement of atoms in a metallic substance: Metals have a specific type of structure. In this structure, atoms lose their outer shell electrons. These electrons move freely throughout the whole metal sample.
Which description best explains the bonding found in a metallic lattice?
Solution: Metallic bonding consists of a giant lattice of positive metal ions. These ions are surrounded by a sea of delocalised electrons that are free to move. The strong electrostatic attraction between these positive ions and the delocalised electrons holds the structure together. Covalent bonds involve sharing electron pairs, while ionic bonds involve the transfer of electrons between atoms. A mixture contains different substances that are not chemically bonded.
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Different substances conduct electricity in different ways. Some materials allow electricity to pass through them because they have particles that can move and carry a charge. Referring to the illustration showing the internal structure of a metal, why do metals show good electrical conductivity in the solid state?
Solution: Metals are good conductors of electricity because the delocalised electrons are free to move through the giant metallic lattice when a voltage is applied. In contrast, simple molecular compounds like water or methane have no free electrons or ions to carry a charge, making them poor conductors. Ionic compounds only conduct when molten or aqueous because the ions are then free to move, but not in the solid state. Graphite is a non-metal that conducts, but most non-metals do not.
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Referring to the illustration of metallic lattice behaviour under pressure, metals can be hammered into thin sheets or pulled into long wires. This is possible because of the way the particles are arranged and how they react to pressure.
What allows a metal to be malleable and change shape without breaking?
Solution: Metallic lattices are malleable and ductile. This is because the layers of positive ions can slide over each other when a force is applied. The sea of delocalised electrons moves with the ions, so the metallic bond is not broken. In giant covalent structures like diamond, the bonds are rigid and break if the atoms move, making them brittle. Compounds and mixtures have different physical properties based on their specific compositions.
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The Periodic Table organises elements based on their atomic structure. The proton number determines the identity of the atom. The number of shells and outer electrons determine an element's position in periods and groups. Based on the provided illustration of a sodium atom, explain the electronic configuration of this atom and identify its position (period and group) on the Periodic Table.
Sample answer: A sodium atom has a proton number of 11. It has 11 electrons. The electronic configuration is 2,8,1. It has three occupied electron shells, so it is in Period 3. It has one electron in its outer shell, so it is in Group I.
Marking criteria:
- Identification of the proton number (atomic number) for the sodium atom.
- Determination of the electron arrangement (configuration) based on the proton number.
- Identification of the period and group location on the Periodic Table using the shell count and outer electrons.
- Simple reasoning connecting the shell count to the period number.
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As depicted in the figure, atoms of the same element like carbon can have different masses depending on their nuclear composition. Based on the provided illustration and your knowledge of chemistry, define what isotopes are and explain why different isotopes of the same element show the same chemical properties.
Sample answer: Isotopes are atoms of the same element. They have the same number of protons but different numbers of neutrons. Isotopes of the same element have the same chemical properties. This is because they have the same number of electrons and the same electronic configuration.
Marking criteria:
- A simple definition of isotopes focusing on protons and neutrons.
- Explanation that the proton number is the same for the same element.
- Comparison of the number of electrons to explain chemical properties.
- Reasoning that electronic configuration dictates chemical behaviour.
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Ionic compounds like sodium chloride form when different types of elements react. As depicted in the figure, these substances have a regular arrangement of ions called a giant lattice. Their bonding affects their physical state and properties. Based on the chemical processes shown in the image, describe how an ionic bond is formed between a metal and a non-metal and explain why ionic compounds usually have high melting points.
Sample answer: Ionic bonds form when a metal atom gives electrons to a non-metal atom. This creates positive ions and negative ions. An ionic bond is a strong attraction between these oppositely charged ions. These compounds have high melting points because the attractions in the giant lattice are very strong and need a lot of energy to break.
Marking criteria:
- Description of the transfer of electrons between a metal and a non-metal.
- Definition of the ionic bond as a strong electrostatic attraction.
- Mention of the resulting ions (cations and anions).
- Explanation of why these compounds have high melting points due to the giant lattice structure.
What you can do
Curriculum aligned
Questions follow your curriculum standards, and every one comes with a short explanation of the correct answer.
Ready as a PDF
Download the questions with an answer key and use them in a test, a worksheet or a review lesson.
How to create visual questions with AI
In Madlen a set of visual questions is ready in three steps.
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Pick a topic and grade
Enter the topic and the grade level for your questions.
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Let the AI design them
Madlen builds curriculum-aligned questions around graphs, tables and images, so students reach the answer by reading the visual.
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Download with an answer key
Download the questions as a PDF with the answer key and a short explanation for each one. You can also share them with students.
Frequently asked questions
How do I create questions with graphs and tables using AI?
In Madlen’s Visual Question Generator you enter a topic and a grade level. The AI designs questions built around graphs, tables and images in seconds. You can download them as a PDF with an answer key.
What is a visual question generator?
A visual question generator creates questions that students answer by reading a graph, table or image. Madlen’s Visual Question Generator builds these questions with AI and aligns them with curriculum standards. It is one of more than 50 tools in the Madlen Toolbox.
Which subjects work with visual questions?
You choose the topic and grade level in Madlen, so the Visual Question Generator is not tied to one subject. One of our samples is a Grade 9 Chemistry set on metallic bonding with diagrams.
Do the visual questions come with an answer key?
Yes, Madlen exports visual questions as a PDF with an answer key. Each question also includes a short explanation of why the correct answer is right.
Can I use Madlen’s Visual Question Generator for free?
Madlen has a free plan, so teachers can sign up and start creating without paying. Madlen is already used on more than 150 campuses.
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