Polar and Nonpolar Covalent Bonding and Properties

Polar and Nonpolar Covalent Bonding and Properties
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160 KB|13 pages
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Product Description
Included in this set:

• A 5 page student packet
• A full teacher answer key

Topics included are:
• Lewis electron dot
• Covalent / Molecular compounds
• Polar and Non-Polar are presented and compared
• Type of sharing equal vs unequal
• Symmetrical or asymmetrical
• Electronegativity difference and examples
• Partial charges using a water molecule (δ+ and δ- locations)
• What happens to energy when bonds are broken or formed.
• Metallic bonding
• Polyatomic ions bonding with metals forming compounds with ionic and covalent bonding

NY State Regents Standards for The Physical Setting Chemistry

• Students will explain chemical bonding in terms of the behavior of electrons.
o demonstrate bonding concepts, using Lewis dot structures representing valence electrons:
§ transferred (ionic bonding)
§ shared (covalent bonding)
§ in a stable octet
• compare the physical properties of substances based on chemical bonds
• determine the noble gas configuration an atom will achieve by bonding
• distinguish between nonpolar covalent bonds (two of the same nonmetals) and polar covalent bonds
• Atoms attain a stable valence electron configuration by bonding with other atoms.
• Noble gases have stable valence configurations and tend not to bond.
• Electron-dot diagrams (Lewis structures) can represent the valence electron arrangement in elements, compounds, and ions.
• Two major categories of compounds are ionic and molecular (covalent) compounds
• When a bond is broken, energy is absorbed. When a bond is formed, energy is released
• Electronegativity indicates how strongly an atom of an element attracts electrons
in a chemical bond.
• Electronegativity values are assigned according to arbitrary scales.
• The electronegativity difference between two bonded atoms is used to assess the degree of polarity in the bond.
• Molecular polarity can be determined by the shape of the molecule and distribution of charge. Symmetrical (nonpolar) molecules include CO2, CH4, and diatomic elements.
• Asymmetrical (polar) molecules include HCl, NH3, and H2O.

Thanks,
Lynn Prescott
Total Pages
13 pages
Answer Key
N/A
Teaching Duration
N/A
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