The Periodic Table of Elements

a table in which all the known elements are arranged by properties and are represented by chemical symbols

• tennis table

• Periodic Table of Elements

• Periodic Table of gases

• coffee table

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a one- or two-letter notation used to represent an atom of a particular element

• chemical equation

• atomic number

• chemical symbol

• atomic mass

a pure substance composed of the SAME type of atom throughout

• element

• mixture

• compound

• proton

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the columns on a periodic table that arrange the elements by the number of electrons that are in the outermost shell; also called families (UP and DOWN)

• cluster

• groups

• individual

• periods

The Periodic Table is a guide to all the known ​ (a)   , or types of atoms in the world.

• elements

• periods

• neutrons

• chemicals

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What is the Periodic Table used for?

• It is used to measure mass

• It is used to show reactions

• It is used for playing games

• It is used to display all of the known elements

Match the following

• Symbol

• O

• Atomic Mass

• 15.999

• Atomic Number

• 8

• Element Name

• Oxygen

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On the periodic table, metals are found on the ​ (a)   side of the staircase and nonmetals are found on the ​ (b)   side of the staircase.

• left

• right

• up

• down

• middle

• north

Aluminum is in GroUP ​ (a)   and Period ​​ (b)  

• 13

• 3

• 1

• 14

• 2

• 18

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A(n) ​ (a)   is an arrangement of elements that show ​ (b)   in their properties.

• periodic table

• patterns

• atomic mass

• no similarities