Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
Question
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Chapter 2, Problem 50QAP

(a)

Interpretation Introduction

Interpretation:

The number of protons and electrons in aS8 molecule needs to be deduced

Concept Introduction:

  • Every system found in nature is a composite of atoms, molecules, ions or other particles
  • These are composed of fundamental subatomic particles: protons, neutrons and electrons.
  • Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)
  • Z = atomic number = number of protons = number of electrons ------ (1)

    A = atomic mass = number of protons + number of neutrons ------ (2)

    For an ion: number of electrons = number of protons + charge on the ion ------ (3)

(b)

Interpretation Introduction

Interpretation:

The number of protons and electrons in SO42- ion needs to be deduced

Concept Introduction:

  • Every system found in nature is a composite of atoms, molecules, ions or other particles
  • These are composed of fundamental subatomic particles: protons, neutrons and electrons.
  • Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)
  • Z = atomic number = number of protons = number of electrons ------ (1)

    A = atomic mass = number of protons + number of neutrons ------ (2)

    For an anion: number of electrons = number of protons + charge on the ion ------ (3)

    For a cation: number of electrons = number of protons - charge on the ion ------ (4)

(c)

Interpretation Introduction

Interpretation:

The number of protons and electrons in H2S molecule needs to be deduced

Concept Introduction:

  • Every system found in nature is a composite of atoms, molecules, ions or other particles
  • These are composed of fundamental subatomic particles: protons, neutrons and electrons.
  • Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)
  • Z = atomic number = number of protons = number of electrons ------ (1)

    A = atomic mass = number of protons + number of neutrons ------ (2)

    For an anion: number of electrons = number of protons + charge on the ion ------ (3)

    For a cation: number of electrons = number of protons - charge on the ion ------ (4)

(d)

Interpretation Introduction

Interpretation:

The number of protons and electrons in S2- ion needs to be deduced

Concept Introduction:

  • Every system found in nature is a composite of atoms, molecules, ions or other particles
  • These are composed of fundamental subatomic particles: protons, neutrons and electrons.
  • Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)
  • Z = atomic number = number of protons = number of electrons ------ (1)

    A = atomic mass = number of protons + number of neutrons ------ (2)

    For an anion: number of electrons = number of protons + charge on the ion ------ (3)

    For a cation: number of electrons = number of protons - charge on the ion ------ (4)

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Chapter 2 Solutions

Chemistry: Principles and Reactions

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