Covalent Bonds
What happens to electrons in a covalent bond?
They are shared
What does VSEPR stand for?
valence shell electron pair repulsion
How are electrons shared in a nonpolar bond?
equally
An intermolecular attraction is the attraction between two what?
Molecules
When you divide the mass of an object by its volume
Density
What type of bond is created when two atoms share two pairs of electrons?
Double bond
What is the bond angle in a tetrahedral molecule?
109.5 degrees
How are electrons shared in a polar bond?
unequally
The strongest intermolecular attraction
Hydrogen Bonding
The only nonmetal that is a liquid at room temperature
Bromine
What is the name of the molecule P4O?
tetraphosphorus monoxide
What shape is formed when the central atom is surrounded by two bonds and no lone pairs?
linear molecule
What determines if a bond is polar or nonpolar
electronegativity difference
The weakest intermolecular attraction
Dispersion forces
How many colors are in the rainbow?
7 (red,orange,yellow,green,blue,violet,indigo)
What is the molecular formula for the molecule disulfur decoxide?
S2O10
How many lone pairs is on the central atom in a trigonal pyramidal molecule?
one lone pair
A molecule of CO2 is...
nonpolar
When a hydrogen atom is weakly bonded to an unshared electron pair of an atom in the same molecule or in a nearby molecule
hydrogen bonding
What is the most abundant element in the universe
Hydrogen
What elements form covalent bonds?
non metals (sometime metalloids)
What is the bond angle in a molecule of water?
<109.5 (~104.5)
What is the dipole on the chlorine atom in a molecule of HCl?
slight negative
What type of intermolecular attraction takes place between two HBr molecules?
Dipole interaction
What is the only planet that spins clockwise?
Venus