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Matter: Properties and Changes

Quiz by Amoy Scott

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13 questions
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  • Q1
    Which of these determines the identity of an element?
    number of electrons
    number of energy levels
    number of protons
    number of neutrons
    30s
  • Q2
    Sodium is an element found in table salt. It contains 11 protons and 12 neutrons. How many electrons are found in a neutral atom of sodium?
    12
    1
    23
    11
    30s
  • Q3
    What is formed when two or more elements are chemically combined?
    composite
    atom
    compound
    mixture
    30s
  • Q4
    Elements are described as pure substances because
    they can be produced in a laboratory.
    they are found in nature.
    they have no charge.
    they cannot be separated into parts by physical means.
    30s
  • Q5
    The nucleus of an atom contains
    only electrons
    only neutrons
    protons and electrons
    protons and neutrons
    30s
  • Q6
    How are the elements in the modern periodic table arranged?
    by number of protons
    alphabetical order
    by atomic mass
    by date discovery
    30s
  • Q7
    Which elements in the periodic table are least likely to combine with other elements?
    halogens
    transition metals
    noble gases
    alkaline earths
    30s
  • Q8
    Carbon and oxygen combine chemically to form carbon dioxide. Carbon dioxide is
    a compound
    an atom
    an ion
    a nucleus
    30s
  • Q9
    Which of these is not made up of two or more substances that are combined physically?
    homogeneous mixture
    compound
    solution
    heterogeneous mixture
    30s
  • Q10
    Filtration can be used to separate a mixture of
    two liquids
    a solid and a liquid
    two solids
    a liquid and a gas
    30s
  • Q11
    Which of these processes would be useful for separating a dissolved solid from a liquid?
    mixing
    sifting
    evaporation
    filtration
    30s
  • Q12
    Which of the following statements about elements is false?
    An element is represented by a chemical symbol.
    An element is made up of compounds.
    Each element has its own atomic number.
    An element is a pure substance.
    30s
  • Q13
    Which term describes the substance that forms when two or more types of atoms join?
    element
    mixture
    compound
    composite
    30s

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