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Unformatted text preview: The Periodic Table of the Elements
The Periodic Table is used to organize the 100+ elements in a Periodic Table of the Elements • The
• • • The Periodic Tableproperties associated with theelements table. There are periodic is used to organize the 100+ periodic in a meaningful way. There are periodic properties associated with the periodic table.
1 H 1
H Atomic Number Symbol Atomic Number
Symbol 2 He 2
He 3 Li 3
Li 4 Be 4
Be 9 F 9
F 10 Ne 10
Ne 11 Na 11
Na 12 Mg 12
Mg 17 Cl 17
Cl 18 Ar 18
Ar 19 K 19
K 20 Ca 20
Ca The Periodic Table of the Elements
The Periodic Table of the Elements 4
4 Molecules Combination of a fixed number of atoms held together in a certain geometric arrangement Chemical Formulas Symbolic representations of the elementary composition of chemical compounds (ex.: N...
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