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PB-SC.8.P.8.7 (L)- Explore the scientific theory of atoms (also known as atomic theory) by recognizing that atoms are the smallest unit of an element and are composed of sub-atomic particles (electrons surrounding a nucleus containing protons and neutrons).

Quiz by Romano, Ellen

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10 questions
Show answers
  • Q1
    What are the subatomic particles that make up an atom?
    Molecules, ions, and isotopes
    Electrons, protons, and neutrons
    Frequencies and wavelengths
    Atoms and compounds
    30s
  • Q2
    Which part of the atom contains protons and neutrons?
    The nucleus
    The electron cloud
    The outer layer
    The atomic shell
    30s
  • Q3
    What is the charge of an electron?
    Positive
    Negative
    Variable
    Neutral
    30s
  • Q4
    What defines the identity of an element?
    The total number of atoms
    The number of protons in its nucleus
    The arrangement of electrons
    The number of neutrons
    30s
  • Q5
    Which of the following statements about atoms is true?
    Atoms have no role in chemical reactions.
    All atoms are identical in size and mass.
    Atoms cannot be divided into smaller parts.
    Atoms are the basic building blocks of matter.
    30s
  • Q6
    What is the main difference between protons and neutrons?
    Protons are found outside the nucleus, while neutrons are inside.
    Protons are positively charged, while neutrons have no charge.
    Protons have no charge, while neutrons are negatively charged.
    Protons are smaller than neutrons.
    30s
  • Q7
    What determines the mass of an atom?
    The number of electrons
    The size of the electron cloud
    The type of chemical bonds it forms
    The total number of protons and neutrons in the nucleus
    30s
  • Q8
    In an atom, what is the role of electrons?
    They determine the shape of the atom.
    They provide the mass of the atom.
    They are involved in chemical bonding and reactions.
    They make up the nucleus with protons and neutrons.
    30s
  • Q9
    What happens to atoms during a chemical reaction?
    Atoms lose their identity entirely.
    Atoms are created and destroyed.
    Atoms remain unchanged.
    Atoms are rearranged to form new substances.
    30s
  • Q10
    Which of the following best describes an atom?
    A cluster of molecules.
    A type of chemical compound.
    The smallest unit of an element that retains the properties of that element.
    A group of ions.
    30s

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