Chemistry Reference
In-Depth Information
Atoms and Atomic
Masses
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3.1
Laws of Chemical Combination
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3.2
Dalton's Atomic Theory
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3.3
Subatomic Particles
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3.4
Atomic Mass
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3.5
Development of the Periodic Table
White light broken into its spectrum of colors by a prism
Review Clues
Objectives
Section 3.1
Section 1.1, Chapter 2
3.1
To calculate some of the quantities
involved in chemical combinations of
elements, using the classical laws
known at Dalton's time
Section 3.2
Section 1.6
Section 3.3
Sections 1.4, 1.5
Section 3.5
Section 1.5
3.2
To interpret the classical laws of
chemical combination using Dalton's
atomic theory
3.3
To use the properties of subatomic
particles—protons, electrons, and
neutrons—to determine atomic structure
3.4
To calculate the atomic mass of any
element—the average mass of its atoms
on a relative scale—two ways: (1) from
the ratios of masses of equal numbers of
atoms, as was done historically, and
(2) from masses and abundances of its
naturally occurring mixture of isotopes,
the more modern method
3.5
To repeat the thought processes of
Mendeleyev and Meyer in the
development of the periodic table
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