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Chemistry 3
HS PS1-3 Bonding
Intermolecular forces
BONDING:
Types of bonding related to electron configurations
Properties of materials with different bonding types
Intermolecular forces
HS-PS1-3 Bonding and imfs
Matter and its Interactions
Plan and conduct an investigation to gather evidence to compare the structure of substances at the bulk scale to infer the strength of electrical forces between particles.
Intermolecular forces and melting point, boiling point, vapor pressure and surface tension.
Performance Expectation
Shapes of molecules ACTIVITY: modeling molecules
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Make models of THREE molecules of your choice with numbers of lone pairs of electrons—then draw and label them
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Make models of the following molecule shapes with the numbers of bond pairs and lone pairs given
and DRAW the molecule including labeling ALL bond angles
and give at least one example of a chemical with that shape—different from your first three in #1
2 bond pairs, 0 lone pairs Linear, 180 °
3 bond pairs, 0 lone pairs Trigonal planar, 120 °
4 bond pairs, 0 lone pairs Tetrahedral, 109.5 °
3 bond pairs, 1 lone pair Trigonal pyramidal, 107 °
2 bond pairs, 2 lone pairs V-shaped, 105 °
5 bond pairs, 0 lone pairs Trigonal bipyramidal, 120 ° and 90 °
4 bond pairs, 1 lone pair See-saw, <120 ° and 90 °
3 bond pairs, 2 lone pairs T-shaped, 90 °
6 bond pairs, 0 lone pairs Octahedral, 90 °
5 bond pairs, 1 lone pair Square pyramid, 90 °
4 bond pairs, 2 lone pairs Square planar, 90 °
3. Make models of the molecules to identify the shapes of each molecules—AND draw the LEWIS DIAGRAMS
1. Water
2. Carbon dioxide
3. Beryllium chloride
4. Ammonia
5. Boron trifluoride