Periodic Table

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

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Each column in the periodic table is called a 

• period
• group
• cluster
• unit

The periodic table has __ periods.

• 18
• 8
• 2
• 7

An element's identity is determined by the number of

• electrons.
• protons.
• neutrons.
• valence.

Group 18 elements are known as the _____ _____ and have full valence shells.

• royal gases.
• supreme solids.
• noble gases.
• legit liquids.

Elements in the same ________ are more chemically similar.

• group
• period
• club
• table

The majority of elements on the periodic table are

• man made.
• nonmetals.
• metals.
• gases.

How many electrons do atoms need to be stable?

• 1
• 2
• 6
• 8

The atomic number tells you what?

• number of electrons
• number of protons
• number of neutrons
• both electrons and protons in an atom.

The family in the periodic table that contains the most reactive metals is the_______

• Alkaline Earth Metals
• Transition Metals 
• Alkali Metals
• Other Metals

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