Review Chapter 4 Atomic Structure Test: Wednesday, Oct. 21

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ReviewChapter 4 Atomic StructureTest
Wednesday, Oct. 21
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• Daltons Atomic Theory and other important
  scientists
• Rutherford Goldstein
• Thomson Gell-Mann
• Bohr Chadwick
• Schrodinger Democritus
• Millikan

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• An element has an atomic number of 76. What is
  the number of protons and electrons in a neutral
  atom of this element?

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• How is the number of neutrons in the nucleus of
  an atom calculated? Write a formula representing
  the number of neutrons in the nucleus.

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• All atoms of the same element have the same
  _____.

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• Isotopes of the same element have different
  _____.

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• Using the periodic table, determine the number of
  neutrons in 16O.

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• What does the number 84 represent in the name
  krypton-84?

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• Who discovered the neutron?

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• Daltons Atomic Theory makes two assumptions that
  are incorrect. What are they?

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• The element Indium has __ protons and ___
  electrons.

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• How do the isotopes of hydrogen-1 and hydrogen-2
  differ?

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• Why did J. J. Thomson reason that electrons must
  be a part of the atoms of all elements?

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• What are the names of the following elements?
  38X and 39X

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• Describe the model of the atom as a result of
  Rutherfords discovery of the nucleus. Draw a
  model showing the particles and their locations.

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• The smallest particle of an element that retains
  the properties of that element is a(n) ____.

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• How many protons, electrons, and neutrons does an
  atom with atomic number 50 and mass number 125
  contain?

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• An element called X has 10 of the isotope with
  a mass 55.11 amu, 20 of the isotope with mass
  56.21 amu, and 70 of the isotope with mass 57.33
  amu. Calculate the atomic mass of element X.

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• How many protons are present in an atom of
  Beryllium-9?

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• Calculate the number of neutrons in Lead-210.

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• Determine the number of electrons in an atom of
  Iridium.

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• Chlorine has two naturally occuring isotopes,
  Cl-35 has a mass of 34.9689 amu, and Cl-37 has a
  mass of 36.9659 amu. If chlorine has an average
  atomic mass of 35.4527 amu, what is the percent
  abundance of each isotope?