Final Test 1 - Chemistry Level X
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Questions and Answers

What does a chemical symbol represent?

  • The number of protons in an atom
  • The charge of a chemical ion
  • The identity of a chemical element (correct)
  • The atomic mass of an element
  • Which type of equipment would you typically find in a chemistry laboratory?

  • Calculator
  • Pipette (correct)
  • Test tube (correct)
  • Microscope
  • Which principle is evaluated when assessing plastics made from cassava flour?

  • Quantum mechanics
  • Green chemistry principles (correct)
  • Thermodynamics
  • Acid-base reactions
  • Who is credited with the discovery of the nuclear model of the atom?

    <p>Ernest Rutherford</p> Signup and view all the answers

    What is the charge of an electron?

    <p>Negative</p> Signup and view all the answers

    How do you determine the number of neutrons in an atom?

    <p>Mass number minus number of protons</p> Signup and view all the answers

    What does the atomic mass of an element represent?

    <p>The combined number of protons and neurons</p> Signup and view all the answers

    Which particle is discovered to have a significantly smaller mass than protons or neutrons?

    <p>Electron</p> Signup and view all the answers

    What is the fundamental role of protons, electrons, and neutrons in a neutral element or ion?

    <p>They define the atomic number and mass number.</p> Signup and view all the answers

    Which statement best describes the relationship between the number of electrons in positive ions?

    <p>Positive ions have fewer electrons than protons.</p> Signup and view all the answers

    How can the electron configuration help determine the period and group of an element?

    <p>The last electron's orbital reveals the element's group.</p> Signup and view all the answers

    What characterizes a stable element in terms of electron configuration?

    <p>It has a full valence shell of electrons.</p> Signup and view all the answers

    How does the presence of positive ions affect the overall stability of a compound?

    <p>It increases the ionic nature of the compound.</p> Signup and view all the answers

    In a neutral element, what is true about the relationship between protons and electrons?

    <p>Protons and electrons are equal in number.</p> Signup and view all the answers

    Which of the following accurately describes the electron configuration of a typical alkali metal?

    <p>It has one electron in its outermost shell.</p> Signup and view all the answers

    What is the significance of analyzing an element's electron configuration?

    <p>It allows predictions about an element's reactivity.</p> Signup and view all the answers

    Study Notes

    Final Test 1 - Chemistry Level X

    • Total Items: 25
    • Duration: 90 minutes
    • Academic Year: 2024/2025
    • Teacher: Shofwa Annisaa, S.Pd.

    Assessment Objectives and Topics

    • 10.1 Chemical:

      • Determine the meaning of chemical symbols
      • Determine the meaning of hazard symbols
      • Identify chemical equipment in the laboratory
    • 10.2 Green Chemistry:

      • Evaluate plastic from cassava flour
      • Green chemistry principles for cassava flour
    • 10.3 Chemistry:

      • Predict nuclear model discoverers
      • Predict the electron discoverer and its charge
      • Determine the number of protons and neutrons, and the mass number/atomic mass for elements
    • 10.4 Atomic Structure:

      • Analyze the best reason supporting answers
      • Determine the number of electrons in positive and negative ions
    • 10.5 Quantum Mechanics Theory:

      • Determine the electron configuration of elements using the Aufbau principle and noble gas configurations
      • Quantum numbers and their usage.
      • Correct statements about quantum numbers
      • Determining atomic radius based on periodic properties
      • Identifying stable elements and their electron configurations
    • Periodic Table:

      • Correct statements about periodic table properties
      • Determine atomic radii
    • Assessment Levels:

      • Multiple Choice (C3) questions focusing on understanding and applying concepts
      • Higher Order Thinking Skills (HOTS) questions, including two-tier multiple choice and AKM Numeration questions, demanding more complex analysis and problem-solving skills.

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    Description

    Prepare for your Chemistry Level X final assessment with this comprehensive quiz covering essential topics such as chemical symbols, green chemistry, atomic structure, and quantum mechanics. With 25 questions to challenge your knowledge, you'll have 90 minutes to demonstrate your understanding and analytical skills in various chemistry concepts.

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