Chapter 5 Atomic Structure and the Periodic Table Review

1
Chapter 5 Atomic Structure and the Periodic
Table - Review

• Milbank High School

2
Chapter 5 Review

• What is the smallest particle of an element that
  retains the properties of that element?
• Who first suggested the idea of atoms, in the 4th
  century b.c.?
• The number of atoms in a copper coin suggests
  that ...

3
Chapter 5 Review

• Know the ideas of Daltons atomic theory.
• What particles form the nucleus of an atom?
• What parts of Daltons original atomic theory
  were revised about a century ago?

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Chapter 5 Review

• Know about the discovery of electrons.
• Why did J. J. Thomson reason that electrons must
  be a part of the atoms of all elements?
• What hypothesis led to the discovery of the
  proton?

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Chapter 5 Review

• Who discovered the neutron, and in what year?
• How does the mass of a neutron compare to the
  mass of a proton?
• Dalton theorized that atoms are indivisible, and
  atoms of the same element are identical. Today
  ...

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Chapter 5 Review

• As a result of the discovery of the nucleus by
  Rutherford, what model described an atom?
• Describe the nucleus of an atom.
• Know the properties of the electron.
• Atoms have what charge, and how many protons and
  electrons?

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Chapter 5 Review

• Describe the number of protons and electrons in a
  given element, such as In.
• The atomic number of an element is the total
  number of
• An element has an atomic number of 80. How many
  protons electrons?

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Chapter 5 Review

• The mass number of an element is equal to
• How are the number of neutrons in the nucleus of
  an atom calculated?
• The sum of the protons and neutrons in an atom
  equals the ...

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Chapter 5 Review

• Using the periodic table, determine the number of
  neutrons in 16O.
• How many protons, electrons, and neutrons does an
  atom with an atomic number of 50 and a mass
  number of 120 contain?

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Chapter 5 Review

• How do the isotopes of hydrogen-1 and hydrogen-2
  differ?
• What does the number 84 in the name krypton-84
  represent?
• What unit is used to measure average relative
  atomic mass?

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Chapter 5 Review

• Different elements have different numbers of
• All atoms of the same element have the same
• Why do chemists use relative comparisons of
  masses of atoms?

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Chapter 5 Review

• What does one atomic mass unit (a.m.u.) equal?
• Isotopes of the same element have different ____
  and ____.
• What does 23892U represent?
• Compare 8038X and 8138X.

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Chapter 5 Review

• What are isotopes?
• Compare 2010X and 2110X.
• The atomic mass of an element is equal to
• Calculate average atomic mass if one isotope of
  mass 20 is 25 abundant, and another has a mass
  22 is 75?

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Chapter 5 Review

• The atomic mass of an element depends on ____,
  _____, and ___.
• What are the Group A elements also known as?
• Which is/are a representative element(s)? Fe,
  Hg, U, Te, or Y

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Chapter 5 Review

• Of the elements Pt, Sc, V, Li, and Kr, which
  is/are nonmetal(s)?
• What is each vertical column of elements in the
  periodic table called?
• Approximately how many elements exist today?

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Chapter 5 Review

• What criterion is used to arrange the elements in
  rows and columns on the periodic table?
• What category (metals, nonmetals, or metalloids)
  includes the majority of the elements?

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Chapter 5 Review

• A mystery element, Q, is a nonlustrous solid and
  a poor conductor of electricity. To what
  category of elements does it belong?
• Who first arranged the elements according to
  nuclear charge?