Introduction to atoms and molecules. Chapter 2-1 – 2-5 Chapter 5-7 and 5-9 Chapter 4-5 – 4-6. Key concepts in this unit. Dalton’s atomic theory The electron, proton, and neutron Isotope, atomic number, mass number Molecules and molecular formulas Introduction to ions
Introduction to atoms and molecules
Chapter 2-1 – 2-5
Chapter 5-7 and 5-9
Chapter 4-5 – 4-6
1 amu = 1.66053873 10-24 g
Nomenclature for inorganic compounds
Table 2-3 (p. 55) and Table 4-11 (p. 142) contain the names and symbols of common cations that you should know.
The common anion is named using the suffix –ate.
Note that the CHARGES on a “family” of oxyanions doesn’t change when the
number of oxygens varies. The oxidation number of the central atom does change.
We’ll discuss this later.
(Sometimes the addition of a hydrogen is indicated by the prefix bi-. For instance, HCO3- is the bicarbonate anion, as in NaHCO3, sodium bicarbonate. Use of either bi or hydrogen is correct).
Table 2-3 (p. 55) and Table 4-11 (p. 142) contain the names and symbols of common anions that you should know. You should also be able to properly name the relatives of the “common” oxyanions.
Double check: the formula for any ionic compound must = ZERO.