Ions and Ionic Bonding. An ion is an atom, or group of atoms, that has a net positive or negative charge. cation – ion with a positive charge If a neutral.
Atom, Molecules & Ions
Chemical Formulas
Early 1800s –Dalton: solidified the idea of the ‘atom’ as the building block of molecules.
CHEMICAL BONDS
CHEMICAL BONDS CHAP 9. 2 For Science Fair Judges Write a 1 – 2 page word-processed report evaluating 2 projects. If you are not a judge, you may submit.
A TOMS, M OLECULES AND I ONS. D ALTON ’ S A TOMIC T HEORY (1808) 1. Elements are composed of extremely small particles called atoms. All atoms of a given.
Atoms, Molecules and Ions Chapter 2 Sections 2.1 – 2.6 for Test II Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or.
1 A molecular formula shows the exact number of atoms of each element in the smallest unit of a substance An empirical formula shows the simplest whole-number.
Chapter 5.1, 5.3, 5.5, 5.8, 5.9 and 5.10
A monatomic ion contains only one atom A polyatomic ion contains more than one atom 2.5 Na +, Cl -, Ca 2+, O 2-, Al 3+, N 3- OH -, CN -, NH 4 +, NO 3 -
