Ionic Bonding
Anions tend to be _____ and cation tend to be ______
nonmetals, metals
What are covalent bonds
A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.
Rank all IMFs from weakest to strongest
LDFs, Dipole-Dipole, H-bonding
What explains the very high melting and boiling point of water?
strong hydrogen bonds between water molecules
What molecular geometry is BH3?
Trigonal Planar
What is the formula for the ionic compound between Mg and S?
MgS
Covalent bonds usually occur between
non metals
Intermolecular forces are strongest in what state?
solids
Which is the second strongest intermolecular force, after hydrogen bonding?
dipole-dipole interaction
What is the acronym to determine if a molecule is polar or nonpolar?
SNAP
Symmetrical Nonpolar
Asymmetric Polar
Elements in the periodic table are grouped by___
their valence electrons
Which bond is more covalent and why? C-H or O-H
C-H because the electronegativity difference is smaller between the atoms
What is an uneven electron distribution within a bond called?
Dipole
In general, bonds between a metal and a nonmetal are___
ionic bond
What molecular geometric shapes have 4 electron domains?
Tetrahedral, Trigonal Pyramidal, Bent
What holds ionic bonds together?
Ions with opposite charges
Which one is an example of a covalent bond… water, sugar, carbon dioxide, or all of the above?
water
What is a dipole moment?
When electrons are unevenly distributed in a nonpolar molecule in an instant
Any halogen needs __________ additional electron(s) to complete its octet
one
Explain the difference between an ionic bond and a polar covalent bond.
Ionic bond has full charges
Polar covalent bond has partial charges, so we use
δ + or δ -
What is the name of this ionic compound: CuCO3
Copper (II) Carbonate
There are __________ paired and __________ unpaired electrons in the Lewis symbol
for a Nitrogen atom.
2,3
H-bonding forces always require___
Hydrogen and a lone pair on F, O, N
When forming bonds, metals tend to___
lose electrons
How many bonding pairs are in CH3Br? How many lone pairs?
Bonding Pairs: 4
Lone Pairs: 3