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Chemistry LibreTexts

1: Atoms and Elements

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    460689
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    • 1.1: The Elements
      All matter is composed of elements. Chemical elements are represented by a one- or two-letter symbol.
    • 1.2: The Structure of Atoms
      Atoms are composed of three main subatomic particles: protons, neutrons, and electrons. Protons and neutrons are grouped together in the nucleus of an atom, while electrons orbit about the nucleus.
    • 1.3: Nuclei of Atoms
      Elements can be identified by their atomic number and mass number. Isotopes are atoms of the same element that have different masses.
    • 1.4: Arrangements of Electrons
      Electrons are organized into shells and subshells about the nucleus of an atom.
    • 1.5: The Periodic Table
      The chemical elements are arranged in a chart called the periodic table. Some characteristics of the elements are related to their position on the periodic table.
    • 1.E: Elements, Atoms, and the Periodic Table (Exercises)
      These are homework exercises to accompany Chapter 2 of the Ball et al. "The Basics of GOB Chemistry" Textmap.


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