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Chapter 5 Atomic Structure and the Periodic Table - Review. Milbank High School. 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.?

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Chapter 5 atomic structure and the periodic table review l.jpg

Chapter 5 Atomic Structure and the Periodic Table - Review

Milbank High School


Chapter 5 review l.jpg
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 ...


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Chapter 5 Review

  • Know the ideas of Dalton’s atomic theory.

  • What particles form the nucleus of an atom?

  • What parts of Dalton’s 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?