BUILDING COVALENT MOLECULES
https://www.youtube.com/watch?v=0HfN3CvXP2M covalent recap
https://www.youtube.com/watch?v=8JsK6rPpi70 drawing Lewis diagrams
Science Quest 10: 4.5.1
1. In covalent molecules the electrons are ____________________ so that each atom can get a __________
____________________ ____________________.
2. The sharing of electrons is always done in _______________ of electrons.
# Shared
Electrons
Name of Bond
Symbol
2
4
6
3. We will be using the following elements when we build covalent compounds:
Element
Lewis Dot Diagram
Covalent bonds needed to fill outer shell
Hydrogen
Oxygen
Sulfur
Nitrogen
Carbon
Halogens (F/Cl)
4. If you have to use more than two atoms, how do you decide which element goes in the middle?
Molecule Name
Water
(Dihydrogen Monoxide)
Chemical Formula
Lewis Structure (dot diagram)
Molecule Name
Chemical Formula
Rotten Egg Gas
(Dihydrogen Sulfide)
Ammonia
Methane
Fluorine
Oxygen
Nitrogen
Hydrogen Cyanide
Carbon Dioxide
Methyl Chloride
CH3Cl
Lewis Structure (dot diagram)
Molecule Name
Chemical Formula
CH3OH
Methanol
(Hint: Build CH3, then OH,
and then put them together.)
CH3CH2CH3
Propane
(C3H8)
(Hint: Build CH3, CH2, CH3,
and then put them together.)
CH3CH2CH2CH3
Butane
(C4H10)
(Hint: See notes above.)
CH3CH2CH2CH2CH3
Pentane
(C5H12)
(Hint: See notes above.)
Lewis Structure (dot diagram)