Bond Types
Intermolecular Forces
Electrons
Lewis-Dot
Melting/Boiling Points
100
covalent
What is the type of bond formed when valence electrons are shared
100
dipole
What is the intermolecular force created between molecules with oppositely charged ends?
100
2+
What is the charge on an ion when the atom loses 2 electrons?
100
The number of dots around hydrogen
What is one?
100
Between H20 and H2S, H20 has a higher one of these
What is melting/boiling point
200
ionic
What is the bond formed when valence electrons are transferred
200
hydrogen bond
What is force of attraction between unpaired electrons of a highly electronegative element of one molecule and a hydrogen atom of another molecule?
200
2-
What is the charge on an ion when the atom gains two electrons
200
The number of dots around oxygen
What is 6?
200
Greater intermolecular forces
What is the reason for higher melting/boiling points?
300
metallic
What is the type of bond formed when electrons are free and loosely shared?
300
dispersion force
What is the intermolecular force involved when molecules can't form H-bonds or dipole interactions
300
group 3a
Which group has 3 valence electrons?
300
The number of dots around a group 7a element
What is 7?
300
Ionic Compounds
What compounds have the highest melting/boiling points
400
ionic
What is the bond formed between a metal and a nonmetal?
400
The stronger the intermolecular forces, the higher melting/boiling point
What is the relationship between intermolecular forces and melting/boiling point?
400
lose 2 valence electrons
What are group 2a elements?
400
The number of dots around magnesium
What is two?
400
dispersion forces
What intermolecular forces are responsible for the lowest boiling points
500
covalent
What is bond formed when two nonmetals bond together?
500
hydrogen bonds
What is the strongest of the intermolecular forces?
500
They gain 2 electrons
What are group 6a elements?
500
The number of dots between two atoms that have a double covalent bond
What is four?
500
Between hydrogen bonds and dipole interactions, these will have lower boiling points.
What is dipole interactions?