Molecular Geometry (VSEPR Theory) and C0valent Review
Journal
Draw Dot Structures for the following:
1. Nitrogen
2. Sulfur
3. NH3
4. SH2
5. Carbon tetrachloride
Molecular Geometry (VSEPR) Theory
VSEPR Theory is a way to describe the shape that molecules form. This shape is determined by how many atoms are bonded to a central atom and how many unbonded electron pairs are left on the central atom. Read pages 104-106 in your book about these different shapes. Pay particular attention to the chart on page 105. In class we added 2 addtional shapes to this chart. They are:
1. Trigonal Planar - 3 atoms bonded to a central atom; 0 unshared pairs of electrons on the central atom
2. Linear - 1 atom bonded to another atom; 0 unshared pairs (there are exceptions to this rule for linear shaped molecules, such as CO2).
In class we practiced making these shapes out of gummy bears. We also reviewed naming covalent compounds. Download and complete the worksheet "Modeling Covalent Bonds" below. This worksheet is due in class on Friday.
THERE WILL BE A QUIZ ON COVALENT COMPOUNDS FIRST THING ON FRIDAY. WE WILL ALSO DO A LAB ON FRIDAY!!!!
Draw Dot Structures for the following:
1. Nitrogen
2. Sulfur
3. NH3
4. SH2
5. Carbon tetrachloride
Molecular Geometry (VSEPR) Theory
VSEPR Theory is a way to describe the shape that molecules form. This shape is determined by how many atoms are bonded to a central atom and how many unbonded electron pairs are left on the central atom. Read pages 104-106 in your book about these different shapes. Pay particular attention to the chart on page 105. In class we added 2 addtional shapes to this chart. They are:
1. Trigonal Planar - 3 atoms bonded to a central atom; 0 unshared pairs of electrons on the central atom
2. Linear - 1 atom bonded to another atom; 0 unshared pairs (there are exceptions to this rule for linear shaped molecules, such as CO2).
In class we practiced making these shapes out of gummy bears. We also reviewed naming covalent compounds. Download and complete the worksheet "Modeling Covalent Bonds" below. This worksheet is due in class on Friday.
THERE WILL BE A QUIZ ON COVALENT COMPOUNDS FIRST THING ON FRIDAY. WE WILL ALSO DO A LAB ON FRIDAY!!!!
modeling_covalent_bonds.pdf |