The Basics
What do the prefixes "intra-" and "inter-" mean?
"Intra-" means "within" or "inside". "Inter-" means "between".
Intermolecular force created between molecules with slightly oppositely charged ends.
What is dipole-dipole?
What is the charge on an ion when the atom loses 2 electrons?
The number of dots around Hydrogen.
What is one?
Between H2O and HCl, which has a higher melting/boiling point?
H2O has a higher melting/boiling point.
The bond formed when valence electrons are transferred from a metal to a non-metal.
What is an ionic bond?
Hydrogen is attracted to these elements to form Hydrogen bonds.
What are F, O, and N?
What is the charge on an ion when the atom gains two electrons
The number of dots around Oxygen.
What is 6?
What is the reason for higher melting/boiling points?
Greater intermolecular forces
What is the difference between intermolecular forces and intramolecular forces?
Intermolecular forces attract or repel molecules. Intramolecular forces are the ones that hold atoms together to form molecules.
Why does water have an unusually high boiling point?
It is held together by Hydrogen bonds.
Group that has 3 valence electrons.
What is group 13?
The number of dots around a Group 17 element.
What is 7?
How can you tell which end of a covalent bond is slightly negative?
The slightly negative end is where the atom with higher electronegativity is.
These are stronger than any intermolecular force.
What are ionic bonds, metallic bonds, and covalent bonds?
What is the relationship between intermolecular forces and melting or boiling point?
The stronger the intermolecular forces, the higher melting or boiling point.
Group that loses 2 valence electrons.
What is group 2?
The number of dots around Magnesium.
What is two?
Which bond is more polar: O-F or H-F?
H-F
This bond is between atoms of similar electronegativities and consists in the sharing of electron pairs.
What are covalent bonds?
Order the following intermolecular forces from strongest to weakest: London dispersion forces, Hydrogen bonds, and dipole-dipole.
Hydrogen bonds > dipole-dipole > LDF
Group that gains 2 valence electrons.
What is group 16?
The number of dots between two atoms that have a double covalent bond.
What is four?
What is the symbol for a partial negative and partial positive charge?
Lowercase delta.