Finding Data on Elements

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Finding Data on Elements
- Organizing the Elements

• Each square of the periodic table includes an
  elements atomic number, chemical symbol, name,
  and atomic mass.

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Organization of the Periodic Table
- Organizing the Elements

• The 18 columns called GROUPS of the periodic
  table reflect a repeating pattern of properties
  that generally occur across a PERIODS.

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The Periodic Table
- Atoms, Bonding, and the Periodic Table

• Elements are organized into rows called Periods
  and columns called groups based on their atomic
  number.

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Practice

• A vertical column in The Periodic Table is called
  _______________.
• The elements of the same group has similar
• ________________.
• As we go down the group the number of electrons
  ________________.

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Practice

• The horizontal rows in the periodic table are
  called ______________.
• Across the row the atomic number __________.
• Across the row the metallic nature of elements
  _______________.

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Metals in the Periodic Table
- Metals

• The metals in Group 1, from lithium to francium,
  are called the alkali metals. Alkali metals react
  with atoms of other elements by losing one
  electron.

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Metals in the Periodic Table
- Metals

• Group 2 of the periodic table contains the
  alkaline earth metals. These elements are not as
  reactive as the metals in Group 1, but they are
  more reactive than most other metals.

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The Metalloids
The metalloids have some characteristics of both
metals and nonmetals. The most useful property of
the metalloids is their varying ability to
conduct electricity.
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Non Metals in the Periodic Table

• Non metals are to the upper right corner of the
  Periodic Table.
• Hydrogen takes an exceptional place in group one
  because of its valance available electron.

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Families of Nonmetals
- Nonmetals and Metalloids

• Because the chemical properties of hydrogen
  differ very much from those of the other
  elements, it really cannot be grouped into a
  family.

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Practice

• The elements at the upper right corner of the
  periodic table are____________

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Practice
The word family implies that the elements in a
family have like properties. What property do the
elements of the noble gas family all share?  A)
The are not reactive.  B) They are very
reactive.  C) They are found in the earth's
atmosphere.  D) They react readily with oxygen
in the air.