200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Ionic Bonds Covalent Bonds Lewis Dot Structures Counting.

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Presentation transcript:

Ionic Bonds Covalent Bonds Lewis Dot Structures Counting Atoms Grab Bag ©2011 University of Illinois Board of Trustees

Ionic Bonds What is an ion? ©2011 University of Illinois Board of Trustees

Ionic Bonds What is an ion? A: A negatively or positively charged atom or group of atoms ©2011 University of Illinois Board of Trustees

Ionic Bonds What is an Ionic Bond? ©2011 University of Illinois Board of Trustees

Ionic Bonds What is an Ionic Bond? A: Forces holding ions formed by the transfer of electrons ©2011 University of Illinois Board of Trustees

Ionic Bonds What groups of elements on the periodic table make up an ionic bond? ©2011 University of Illinois Board of Trustees

Ionic Bonds What groups of elements on the periodic table make up an ionic bond? A: Metal and non-metal ©2011 University of Illinois Board of Trustees

Ionic Bonds What is the difference between a cation and an anion? ©2011 University of Illinois Board of Trustees

Ionic Bonds What is the difference between a cation and an anion? A: Cation is positive, anion is negative ©2011 University of Illinois Board of Trustees

Ionic Bonds Which element has a higher ionization energy; Cesium or Potassium? ©2011 University of Illinois Board of Trustees

Ionic Bonds Which element has a higher ionization energy; Cesium or Potassium? A: Potassium ©2011 University of Illinois Board of Trustees

Covalent Bonds What is a covalent bond? ©2011 University of Illinois Board of Trustees

Covalent Bonds What is a covalent bond? A: The sharing of electrons ©2011 University of Illinois Board of Trustees

Covalent Bonds Draw the bond for Carbon + Oxygen ©2011 University of Illinois Board of Trustees

Covalent Bonds Draw the bond for Carbon + Oxygen A: ©2011 University of Illinois Board of Trustees

Covalent Bonds How many electrons are in a single bond? ©2011 University of Illinois Board of Trustees

Covalent Bonds How many electrons are in a single bond? A: 2 ©2011 University of Illinois Board of Trustees

Covalent Bonds How do you represent a double bond? ©2011 University of Illinois Board of Trustees

Covalent Bonds How do you represent a double bond? A: by 2 lines (=) ©2011 University of Illinois Board of Trustees

Covalent Bonds What is a polar-covalent bond? What is the symbol that shows polarity? ©2011 University of Illinois Board of Trustees

Covalent Bonds What is a polar-covalent bond? What is the symbol that shows polarity? A: A bond where one side is slightly positive, and one side is slightly negative. Represented: δ+/- ©2011 University of Illinois Board of Trustees

Lewis Dot Structure What do the dots in the Lewis dot structure represent? ©2011 University of Illinois Board of Trustees

Lewis Dot Structure What do the dots in the Lewis dot structure represent? A: Valence electrons ©2011 University of Illinois Board of Trustees

Lewis Dot Structure Draw the Lewis dot structure for Carbon ©2011 University of Illinois Board of Trustees

Lewis Dot Structure Draw the Lewis dot structure for Carbon A: ©2011 University of Illinois Board of Trustees

Lewis Dot Structure What other model besides the Lewis dot structure is used to describe the structure of an atom? ©2011 University of Illinois Board of Trustees

Lewis Dot Structure What other model besides the Lewis dot structure is used to describe the structure of an atom? A: The Bohr model ©2011 University of Illinois Board of Trustees

Lewis Dot Structure Draw the Lewis dot structure for an element from group 16 ©2011 University of Illinois Board of Trustees

Lewis Dot Structure Draw the Lewis dot structure for an element from group 16 A: ©2011 University of Illinois Board of Trustees

Lewis Dot Structure What else does atomic symbol in a Lewis dot structure represent? ©2011 University of Illinois Board of Trustees

Lewis Dot Structure What else does atomic symbol in a Lewis dot structure represent? A: The inner orbitals and electrons ©2011 University of Illinois Board of Trustees

Counting Atoms How many different types of atoms are in C 6 H 12 O 6 ? ©2011 University of Illinois Board of Trustees

Counting Atoms How many different types of atoms are in C 6 H 12 O 6 ? A: 3 ©2011 University of Illinois Board of Trustees

Counting Atoms What does the coefficient represent in 2H 2 O? ©2011 University of Illinois Board of Trustees

Counting Atoms What does the coefficient represent in 2H 2 O? A: 2 molecules of water or 2 moles of water ©2011 University of Illinois Board of Trustees

Counting Atoms How many atoms are in KHCO 3 ? ©2011 University of Illinois Board of Trustees

Counting Atoms How many atoms are in KHCO 3 ? A: 6 ©2011 University of Illinois Board of Trustees

Counting Atoms How many atoms are in: 2Na 2 SO 4 ? ©2011 University of Illinois Board of Trustees

Counting Atoms How many atoms are in: 2Na 2 SO 4 ? A: 14 ©2011 University of Illinois Board of Trustees

Counting Atoms How many atoms are in 3Al(HCO 3 ) 3 ©2011 University of Illinois Board of Trustees

Counting Atoms How many atoms are in 3Al(HCO 3 ) 3 A: 48 ©2011 University of Illinois Board of Trustees

Grab Bag What are valence electrons? ©2011 University of Illinois Board of Trustees

Grab Bag What are valence electrons? A: the electrons in the outermost orbital ©2011 University of Illinois Board of Trustees

Grab Bag What is the octet rule? ©2011 University of Illinois Board of Trustees

Grab Bag What is the octet rule? A: 8 electrons in the outermost/valence shell ©2011 University of Illinois Board of Trustees

Grab Bag What type of elements make up a covalent bond? ©2011 University of Illinois Board of Trustees

Grab Bag What type of elements make up a covalent bond? A: a non-metal and a non-metal ©2011 University of Illinois Board of Trustees

Grab Bag How is a compound different from a mixture? ©2011 University of Illinois Board of Trustees

Grab Bag How is a compound different from a mixture? A: A compound always contains the same elements in a fixed, definite ratio ©2011 University of Illinois Board of Trustees

Grab Bag What type of bond has a high melting point? ©2011 University of Illinois Board of Trustees

Grab Bag What type of bond has a high melting point? A: Ionic and 3-D covalent ©2011 University of Illinois Board of Trustees