Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.

By the end of this section, you will be able to do the following:

Define matter and elements
Describe the interrelationship between protons, neutrons, and electrons
Compare the ways in which electrons can be donated or shared between atoms
Explain the ways in which naturally occurring elements combine to create molecules, cells, tissues, organ systems, and organisms

This site provides a nice description of the inert gases (noble gases). Content focuses on why they are so "happy," who they are, and their bonding abilities.

Here you can find some great information about the 10th element in the periodic table, "neon." Content focuses on neon's electrons, where you can find neon in nature and in the home, and how neon combines with other elements.

A very nice site with all sorts of information on helium, including good summaries on isolation and uses of helium.

An exceptionally thorough resource with an amazing set of data on krypton, it chemical and physical properties, its electron configuration and its isotopes, among other things.

A great reference for information on neon. This is as thorough of a site as you are likely to find.

Great site for all sorts of information on radon. Very thorough and well organized. Highly recommended.