CHEM107 Study Guide - Midterm Guide: Alkaline Earth Metal, Krypton, Ionic Bonding
13 Nov 2017
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Chapter 1: (more questions and answers at the end of chapter 1 in e-book) Describe the molecular nature of the world. From a molecular perspective, compare and contrast different states of matter. Determine the identity of an element or isotope from various different representations. Navigate periodic table to find atomic mass and atomic number. Atom: tiny, indestructible building blocks that make up all matter. Scientific theory: explanations of natural phenomena based on observation and experimentation (testable) Isotope: same number of protons, different number of neutrons. Cation: atoms that lose electrons and become positively charged ions. Anion: atoms/ molecules that gain electron and become negatively charged ions. Elements: substances that cannot be broken down into smaller substances. Matter: everything in the universe that has mass and occupies space. Chemistry: study of composition, structure, and properties of matter, and the changes it undergoes. Intensive properties: characterize a pure substance and do not rely on the quantity of the substance.
