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Unit 6 Lesson 7 The Periodic Table

Key Concepts:

Terms in this set (18)

metals
Almost three-fourths of the elements on the periodic table are ____________.
metals
conduct thermal energy or electricity
nonmetals
do not conduct thermal energy or electricity
metalloids
have properties of both metals and nonmetals
metalloids
between metals and nonmetals on the periodic table
nonmetals
on the right side of the periodic table and includes hydrogen
periodic table
arranged into rows and columns according to their physical and chemical properties
repeating patterns
periodic means
periodic
repeating patterns are called
atomic number
increases as you move across a row
melting point, boiling point, and density
Identify three physical properties that increase then decrease as you move across a row on the periodic table.
nearby
elements share similar properties with _____________ elements on the periodic table
periods
rows on the periodic table are called ________
groups or families
columns on the periodic table are called_________
groups
Elements in the same _____________ have similar chemical properties.
period
As you move across a _______________, physical and chemical properties of the elements change in a predictable way.
react with other elements in similar ways
What does the phase "groups have similar chemical properties" mean?
Groups have more in common, they share similar chemical properties.
Which set of elements usually has more in common, periods or groups? Explain your answer.
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