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Atomic Theory

  •   Game Code: 2996917
  •  English    25     Public
    Atomic theories, models and structure
  •   Study   Slideshow
  • A change in the number of _______ changes the identity of the atom.
    electrons
    neutrons
    nuclei
    protons
  •  15
  • The cluster of particles in the center of a molecule is called the...
    black hole
    proton cluster
    nucleus
    electron cloud
  •  15
  • Which scientist is responsible for the discovery of the nucleus?
    Ernest Rutherford
    Niels Bohr
    J.J. Thomson
    John Dalton
  •  15
  • If Aluminum has an atomic number of 13 and it has 14 neutrons, what is the mass number of Aluminum?
    27
  •  20
  • Which sub-atomic particle is positively charged?
    proton
  •  20
  • Which sub-atomic particle is negatively charged?
    electron
  •  20
  • What kind of charge does an electron have?
    negative
  •  15
  • What kind of charge does a neutron have?
    neutral (no charge)
  •  15
  • An atom with mass number: 25 and 11 neutrons. How many protons are there?
    14
  •  20
  • What kind of charge does a proton have?
    positive
  •  15
  • A molecule of Nickel (Ni) element has how many protons?
    28
  •  10
  • An atom has atomic number 7 and mass number 15. How many neutrons are in the atom?
    7
  •  20
  • Which scientist first discovered electrons?
    Ernest Rutherford
    Democritus
    Aristotle
    J.J. Thomson
  •  15
  • The elements of the periodic table are arranged ____________.
    Alphabetically
    When they were discovered
    How much the scientists liked each one
    by their atomic number
  •  20
  • How many protons does a molecule of Neon (Ne) have?
    10
  •  10
  • According to modern understanding, electrons are found in the...
    nucleus
    electron cloud
    neutron
    electron bank
  •  10
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