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ChemistryClass 9en

⚛️ Structure of the Atom

This quiz explores the fundamental building blocks of matter: protons, neutrons, and electrons, and their roles in atomic structure. **What you'll learn:** - Identify the location and charge of protons, neutrons, and electrons in an atom - Calculate the number of subatomic particles using atomic number and mass number - Understand the properties and behaviour of electrons in energy levels - Apply knowledge of atomic structure to explain atomic mass and isotopes

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Questions in this quiz

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  1. Question 1

    Electrons are located in the nucleus of an atom alongside protons and neutrons.

  2. Question 2

    What is the charge of a proton?

  3. Question 3

    Which subatomic particle has approximately the same mass as a proton but carries no charge?

  4. Question 4

    The atomic number of an element is equal to the number of ___ in its atom.

  5. Question 5

    The mass number of an atom equals the sum of the number of protons and neutrons.

  6. Question 6

    An atom of nitrogen has 7 protons and 8 neutrons. How many electrons does a neutral nitrogen atom have?

  7. Question 7

    Isotopes of an element have the same number of protons but different numbers of ___.

  8. Question 8

    Electrons occupy fixed, circular orbits around the nucleus at precise distances, similar to planets orbiting the sun.

  9. Question 9

    Carbon-12 and Carbon-14 are isotopes of carbon. Which statement is correct?

  10. Question 10

    Arrange these subatomic particles in order of increasing mass (lightest to heaviest).