CHEM 0110 Lecture Notes - Nonmetal, Hydrogen Peroxide, Roman Numerals
Document Summary
All samples of a given element have the same proportions of their constituent elements: h2o. 8:1 ratio: divide the larger amount my the smaller sample. Usually list the most metallic element first. In compounds that do not have a metal, the one closest to the metals us named first. Empirical: gives the simplest whole number ratio of atoms of element in a compound. Molecular: gives the actual number of atoms of each element in a molecule of the compound. Use lines to represent chemical bonds and shows how the atoms are connected to each other. Atoms that exist in nature with single atoms as their basic units. Do not usual exist with single atoms as their basic units. Diatomic molecules: two of the atoms bonded together. Compounds formed from two or more nonmetals. Contains one or more cations paired with one or more anions. Usually cations are metals and anions are nonmetals.
