Included in this set:
â€¢ A 5 page student packet
â€¢ A full teacher answer key
Topics included are:
â€¢ Lewis electron dot
â€¢ Covalent / Molecular compounds
â€¢ Polar and Non-Polar are presented and compared
â€¢ Type of sharing equal vs unequal
â€¢ Symmetrical or asymmetrical
â€¢ Electronegativity difference and examples
â€¢ Partial charges using a water molecule (Î´+ and Î´- locations)
â€¢ What happens to energy when bonds are broken or formed.
â€¢ Metallic bonding
â€¢ Polyatomic ions bonding with metals forming compounds with ionic and covalent bonding
NY State Regents Standards for The Physical Setting Chemistry
â€¢ Students will explain chemical bonding in terms of the behavior of electrons.
o demonstrate bonding concepts, using Lewis dot structures representing valence electrons:
Â§ transferred (ionic bonding)
Â§ shared (covalent bonding)
Â§ in a stable octet
â€¢ compare the physical properties of substances based on chemical bonds
â€¢ determine the noble gas configuration an atom will achieve by bonding
â€¢ distinguish between nonpolar covalent bonds (two of the same nonmetals) and polar covalent bonds
â€¢ Atoms attain a stable valence electron configuration by bonding with other atoms.
â€¢ Noble gases have stable valence configurations and tend not to bond.
â€¢ Electron-dot diagrams (Lewis structures) can represent the valence electron arrangement in elements, compounds, and ions.
â€¢ Two major categories of compounds are ionic and molecular (covalent) compounds
â€¢ When a bond is broken, energy is absorbed. When a bond is formed, energy is released
â€¢ Electronegativity indicates how strongly an atom of an element attracts electrons
in a chemical bond.
â€¢ Electronegativity values are assigned according to arbitrary scales.
â€¢ The electronegativity difference between two bonded atoms is used to assess the degree of polarity in the bond.
â€¢ Molecular polarity can be determined by the shape of the molecule and distribution of charge. Symmetrical (nonpolar) molecules include CO2, CH4, and diatomic elements.
â€¢ Asymmetrical (polar) molecules include HCl, NH3, and H2O.