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Chemistry LibreTexts

2.2: Nuclei, Ions, and Molecules

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  • \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)

    Unit 3 Objectives

    By the end of this unit, you will be able to:

    • Describe nuclear structure in terms of protons, neutrons, and electrons
    • Recognize the role of mass defect and binding energy for nuclei in atomic masses
    • Explain trends in the relative stability of nuclei
    • Identify common modes of radioactive decay
    • Write and balance nuclear equations
    • Describe half-life and common radiometric dating techniques
    • Explain the organization of elements in the periodic table and predict their general properties based on their location within the periodic table
    • Symbolize the composition of molecules using molecular and empirical formulas
    • Represent the bonding arrangement of atoms within molecules using structural formulas
    • Define ionic and molecular (covalent) compounds
    • Predict the type of compound formed from elements based on their location within the periodic table
    • Determine formulas for simple ionic compounds
    • Derive names for common types of inorganic compounds using a systematic approach

    Thumbnail: Spinning Buckminsterfullerene (\(\ce{C60}\)). (CC BY-SA 3.0; unported; Sponk).

    2.2: Nuclei, Ions, and Molecules is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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