Atoms, Molecules and Ions Study Guide

Objectives

• Know some history of atomic structure( Democritus, Dalton)
• Know the components of Dalton’s Atomic theory and how it was modified
• Know the main experiments that led to the basic structure of the atom( JJ Thomson, Rutherford)
• Know the characteristics of the 3 subatomic particles ( protons, electrons, and neutrons) and be able to describe their location in the atom
• Be able to calculate protons, electrons, and neutrons from atomic and mass number
• Be able to write the nuclear symbol and/or hyphen notation for atoms
• Define isotope
• Know the difference between an atom, ion, and molecule
• Be able to know the charges for common monatomic ions and polyatomic ions
• Be able to write chemical formulas for ionic compounds and covalent compounds
• Be able to name chemical compounds for ionic and molecular compounds
• Be able to name simple acids (nonoxyacids and oxyacids) and write their chemical formulas
• Have a basic knowledge of the families of the periodic table
• Be able to predict whether a elements is a metal, nonmetal, or semimetals as well as the charges of ions