molecular geometry

Question 1

shape of molecules are determined by:
1.
2.
3.

Answer 1

• type of atoms
• number of each type of element
• number of lone pairs of electrons

Question 2

VSEPR

Answer 2

Valence
Shell Electron
Pair
Repulsion
Theory

Question 3

_____compounds are the ultimate dipoles because they involve attraction between a cation and an anion

Answer 3

ionic

Question 4

How to tell if a molecule is non polar….

Answer 4

• no lone pairs of electrons

- all of the constituent atoms are the same element

Question 5

hybridization

Answer 5

mixing of 2 atomic orbitals of similar energies on the same atom to produce new “hybrid” orbitals of = energies

Question 6

types of intermolecular forces
1.
2.
3.

Answer 6

dipole-dipole
hydrogen bonding
london dispersion forces

Question 7

types of dipole-dipole interactions

Answer 7

1. ionic bonds between complete dipoles
2. attractions between a dipole moment and an ion
3. attractions between opposite ends of a dipole moment

Question 8

which type of dipole-dipole interactions are the strongest?

Answer 8

ionic

Question 9

which type of dipole-dipole interactions are responsible for salts dissolving in water?

Answer 9

-dipole and an ion

Question 10

Are there any attractions between non polar molecules?

Answer 10

london dispersion forces

Question 11

which type of intermolecular force is essential for biological molecules?

Answer 11

hydrogen bonds

Question 12

Do covalent or ionic bonds have greater strength?

Answer 12

covalent

Question 13

Which type of atom, polar or non polar, experience greater intermolecular forces?

Answer 13

polar, because non polar don’t have a charge

Question 14

why do we use the VSEPR theory?

Answer 14

to show the shape of a molecule

Question 15

can a molecule contain polar bonds but be non polar?

Answer 15

yes, BeF2 is an example