Chapter 4 Review Atomic Structure

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Chapter 4 ReviewAtomic Structure

• Pre-AP Chemistry
• Charles Page High School
• Stephen L. Cotton

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Chapter 4 Review

• All atoms of the same element have the same
  _____.
• Know Daltons Atomic Theory.
• An element has an atomic number of 76. What is
  the number of protons and electrons in a neutral
  atom of this element?
• How is the number of neutrons in the nucleus of
  an atom calculated?

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Chapter 4 Review

• All atoms are neutral, with the number of protons
  equaling the ___.
• Isotopes of the same element have different
  _____.
• Using the periodic table, determine the number of
  neutrons in 16O.
• What does the number 84 represent in the name
  krypton-84?

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Chapter 4 Review

• What is the correct complete symbol for an atom
  of tritium?
• Know who discovered the neutron, and in what
  year.
• Dalton said that atoms were indivisible and atoms
  of the same element were identical. Have any
  changes been made to this?

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Chapter 4 Review

• The mass number of an element is equal to _____.
• The sum of the protons and neutrons in an atom
  equals the __.
• What is the purpose of comparing the number of
  atoms of copper in a coin the size of a penny
  with the number of people on the earth?

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Chapter 4 Review

• The atomic number of an element is the total
  number of ____.
• How do the isotopes of hydrogen-1 and hydrogen-2
  differ?
• What hypothesis led to the discovery of the
  proton?
• The element Indium has __ protons and ___
  electrons.

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Chapter 4 Review

• Why did J. J. Thomson reason that electrons must
  be a part of the atoms of all elements?
• Isotopes of the same element have different ____.
• Know characteristics regarding the nucleus of an
  atom.
• Are these the same element? 38? and 39?

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Chapter 4 Review

• Describe the model of the atom as a result of
  Rutherfords discovery of the nucleus.
• The smallest particle of an element that retains
  the properties of that element is a(n) ____.
• Know the complete symbol for an element, and what
  it means X

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Chapter 4 Review

• What is the relative mass of an electron?
• The particles that are found in the nucleus of an
  atom are ____.
• Know the ideas from Democritus.
• Who conducted experiments to determine the
  quantity of charge carried by an electron?

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Chapter 4 Review

• How many protons, electrons, and neutrons does an
  atom with atomic number 50 and mass number 125
  contain?
• Who was the man who lived from 460 B.C. 370
  B.C., and was among the first to suggest the idea
  of atoms?

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Chapter 4 Review

• Know the characteristics of subatomic particles.
• A fictitious element X has 10.0 of the
  isotope with mass 55 amu, 20.0 of the isotope
  with mass 56 amu, and 70.0 of the isotope with
  mass 57 amu. Estimate the atomic mass of element
  X.

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Chapter 4 Review

• Element Z has two isotopes one has mass number
  of 19.0 amu is 55.0 abundant, and the isotope
  with mass number 21.0 amu is 45.0 abundant.
  What is the average atomic mass for element Z?
• How many protons are present in an atom of
  Beryllium-9?

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Chapter 4 Review

• Calculate the number of neutrons in Lead-210.
• Determine the number of electrons in an atom of
  Iridium.
• About how many more times massive is a proton
  than electron?
• How many neutrons are present in an isotope of
  uranium-235?

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Chapter 4 Review

• What is the atomic number for an element with 41
  neutrons and a mass number of 80?
• Use the periodic table to determine the number of
  protons in barium.
• How many protons are present in the nuclei of the
  three known isotopes of hydrogen?

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Chapter 4 Review

• What is the mass number for an oxygen atom that
  has 10 neutrons in its nucleus?
• How many electrons are in an atom of gold?
• What is the total number of subatomic particles
  in the nucleus of an atom of bismuth-209?

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Chapter 4 Review

• Use the periodic table to determine the number of
  electrons in a neutral atom of lithium.

End of Chapter 4 Review