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19.3
Writing Formulas and Naming Compounds
14
Science
9th Grade
04/08/2008

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Term
Ionic compound: charged ionic particles bonded together by the -- of electrons
Definition
transfer
Term
Covalent compound: atoms bonded together by the -- of electrons.
Definition
sharing
Term
Chemists use -- from the periodic table to write formulas for compounds.
Definition
chemical symbols
Term
-- compound: composed of two elements
Definition
Binary
Term
--: how may electrons an atom gains, loses, or shares to become stable
Definition
Oxidation number
Term
Oxidation numbers and their least common multiples can be used to write --
Definition
formulas
Term
When writing formulas, remember that the compound is --
Definition
neutral
Term
A formula must have the correct number of positive and negative ions so the charges --
Definition
balance
Term
Use the name of the first element, the root name of the second element, and the suffix -ide to write the -- of a binary ionic compound
Definition
name
Term
-- ion: positively or negatively charged, covalently bonded group of atoms
Definition
Polyatomic
Term
To write formulas, use the oxidation numbers, their least common multiple, and put parentheses around the -- before adding a subscript
Definition
polyatomic ion
Term
--: compound with water chemically attached
Definition
Hydrate
Term
Name -- by using prefixes to indicate how many elements are in the compound.
Definition
binary covalent compounds
Term
-- are used to indicate the oxidation number if an element can have more than one oxidation number.
Definition
Roman numerals
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