Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
|
molecule
|
neutral group of atoms that hare held together my covalent bonds
|
|
|
molecular compound
|
chemical compound whose simplest units are molecules
|
|
|
chemical formula
|
indicates the relative numbers of atoms in each kind of chemical compound by using atomic symbols and numerical subscripts
|
|
|
molecular formula
|
shows the types and numbers of atoms combined in a single molecule of a molecular compound
|
|
|
diatomic molecule
|
a molecule carrying 2 atoms
|
|
|
bond length
|
the distance between 2 bonded atoms at their minimum potential nergy/ the average distance btween 2 bonded atoms
|
|
|
bond energy
|
the energy required to break a chemical bond and form neutral isolated atoms
|
|
|
octet rule
|
chemical compounds tend to form so that each atom, by gaining, losing, or sharing electrons, has an octet of electrons in its highest occupied energy level
|
|
|
chemical bond
|
the forces that hold groups of atoms together and make them function as a unit
form to make molecule more stable |
|
|
bond energy
|
energy required to break a bond
|
|
|
intramolecular
|
within a molecule
ionic covalent- polar, non, coordinate covalent network metallic |
|
|
intermolecular bonds
|
between 2 more more molecules already bonded by intramolecular bonds
h bonds dipole-diople interactions london dispersion forces ion-molecule interactions |
|
|
ionic bonding
|
electrostatic attaction between cation and an anion. metal and nonmetal
crystal lattices high mps brittle dissolve in water good conductor of electro not in solid |
|
|
monatomic ions
|
one atom ions (ca-)
|
|
|
polyatomic ions
|
ions consisting of more than 1 (SO42-)
|
|
|
covalent
|
2 nonmetals
shared pair of electrons between 2 atoms united- molecule lower mps dipole moments0 2 poles, positive and negative pole |
|
|
Dipole-dipole
|
2 polar molecules w/ permanent diple + and = attract
|
|
|
Hydrogen bonds
|
H with F, N, O
|
|
|
London Dispersion Forces
|
LDF- constant movement of electrons in electron cloud- instantaneous dipole,increase w/ size of the atom
|
|
|
Ion-dipole
|
Ions interact w. charged ends of polar molecules
|
|
|
Van Der Waals forces
|
LDFs and Dipole-dipole
|
