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QUIZ - Atoms & Elements 4.1 - 4.7

Quiz by Devon Roesener

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26 questions
Show answers
  • Q1
    What is the smallest identifiable unit of an element?
    atom
    neutron
    electron
    proton
    45s
  • Q2
    According to our text, the number of different elements in nature.
    118
    103
    120
    91
    45s
  • Q3
    Who coined the name atomos - "indivisible"?
    Democritus
    John Dalton
    J.J. Thomson
    Leucippus
    45s
  • Q4
    Which scientist discovered the electron?
    J.J. Thomson
    Democritus
    John Dalton
    Ernest Rutherford
    45s
  • Q5
    Ernest Rutherford developed
    the nuclear theory of the atom
    the nuclear atom
    the periodic law
    the periodic table
    45s
  • Q6
    This is a positively charged particle
    anion
    cation
    proton
    electron
    45s
  • Q7
    This has a mass of .00055 amu.
    electon
    neutron
    proton
    anion
    45s
  • Q8
    Constitutes 99.9% of the mas of an atom.
    protons and electrons
    protons and neutron
    protons only
    electrons and neutrons
    45s
  • Q9
    Most matter is _____-_____ because proton and electrons charges cancel out.
    charge-neutral
    repel-charge
    neutral-electric
    electrically-neutral
    45s
  • Q10
    The atomic mass unit (amu) is _____-_____ of the mass of a carbon atom.
    1/6
    1/8
    1/12
    1/3
    45s
  • Q11
    The number of _____ identifies the atom as a particular element.
    electrons
    ions
    neutrons
    protons
    45s
  • Q12
    The symbol Z represents the _____.
    atomic mass unit
    atom
    atomic mass
    atomic number
    45s
  • Q13
    Arrangement of elements by atomic number.
    periodic table
    periodic rule
    periodic law
    chemical list
    45s
  • Q14
    Russian chemistry professor who organized the periodic table.
    J.J. Thomson
    Marie Curie
    Ytterbium Erbium
    Dmitri Mendeleev
    45s
  • Q15
    Atomic symbol and atomic number for gold.
    Cu-29
    Ag - 47
    Au -79
    Go -79
    45s

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