Atoms, Molecules, And Ions Worksheet - Chapter 2 Page 14
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27Ionic Bonds
Ionic compounds (such as NaCl) are generally
formed between metals and nonmetals.
Formula : notation using atomic symbols
that conveys relative proportions of atoms
of the different elements in a substance
Ionic compound
: compound composed of cations and
anions
-cation is an ion with positive charge
-anion is an ion with a negative charge
Molecule
: definite group of atoms that are chemically
bonded together
Empirical Formula
: Relative numbers of atoms of each type
in a molecule
Molecular Formula
: Chemical formula that gives the exact
number of different atoms of an element in a molecule
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