Periodic Table Basics and History

_______________ developed the first periodic table and left blanks for undiscovered elements.

• Stevie Wonder

• Sasha Vujacic

• Dmitri Mendeleev

• Henry Moseley

How did Mendeleev arrange the elements?

• alphabetical 
• density
• melting point
• atomic mass

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In the modern periodic table elements are arranged by:

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

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Who arranged the periodic table by increasing atomic number?

• Mendeleev

• Rutherford

• Bohr

• Moseley

The number at the top of each square on the periodic table is the ...

• atomic number
• atomic mass
• Chemical Symbol
• Element Name

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The horizontal row on the periodic table is called a

• group
• family
• period
• atomic number

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A vertical column is called...

• group
• tower
• period
• crew

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The periodic table has __ periods.

• 18
• 8
• 2
• 7

The period for Bromine is ___________.

• 3
• 2
• 4

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Beryllium is in group number______.

• Group 2
• Group 3
• Group 4
• Group 7

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