1.3 Bonding, Structure + Proterties Flashcards
Do covalent networks conduct electricity?
Never.
What is an example of a linear shaped molecule?
Hydrogen Flouride
H—F
What is an example of a tetrahedral shaped molecule?
Methane
H
H C H
H (With appropriate dashes)
What is an example of a trigonal pyramid shaped molecule?
Ammonia
H N H
H (With appropriate dashes)
Covalent molecular properties?
- Low melting and boiling points.
- liquid, gas or low melting point solid at room temperature.
- no conduction.
What are the four shapes molecules can be?
- Linear
- Angular
- Tetrahedral
- Trigonal pyramid
Covalent network properties?
- Solid at room temperature.
- high melting and boiling points.
- No conduction (except graphite).
Do covalent molecular have low or high MP+ BP?
Low melting and boiling points.
What is a covalent moleculars state at room temperature?
Liquid, gas or low melting point solid at room temperature.
Do covalent networks have high or low MP+BP?
High melting and boiling points.
Do ionic lattices conduct electricity?
Only when molten or in solution.
What is an ionic lattices state at room temperature?
Solid.
What is an ionic bond?
The electrostatic force between positive and negative ions.
Ionic lattice properties?
- Conducts when molten of in solution.
- high melting and boiling points.
- solid at room temperature.
What is a covalent bond?
A shared our of elections between two non-metal atoms.
