CHEM 120 Week 2 Review – 30+ Practice Questions on Atomic Structure, Electron Configuration, Bond Types & Density – Chamberlain University (2025/2026)

This updated review guide for Week 2 of CHEM 120 at Chamberlain University (academic year 2025/2026) includes 30+ expertly answered questions designed to reinforce foundational chemistry concepts. The document is ideal for students preparing for weekly quizzes, midterms, or lab discussions focused on atomic structure, subatomic particles, electron configuration, chemical bonding, and metric/imperial conversions. Key concepts covered include: valence electrons, Lewis Dot Structures, density calculations, charges of ions, mass number and isotopes, and identifying bond types (ionic, polar covalent, nonpolar covalent). Additional content includes molecular geometry (e.g., trigonal pyramidal) and electron configuration matching exercises. With a focus on clarity and accuracy, this review is a reliable tool for mastering early general chemistry material. This resource is best suited for students in nursing, pre-med, biology, pharmacy, and health science programs, especially those enrolled in introductory or general chemistry courses. It builds strong foundational knowledge required for success in both lecture and lab components of the course. Keywords: atomic structure, electron configuration, valence electrons, Lewis structure, chemical bonding, ionic compounds, covalent bonds, isotopes, density calculation, molecular geometry, metric conversions, protons neutrons electrons, trigonal pyramidal, CHEM 120, Chamberlain chemistry