Chem MP2 Quarterly Flashcards
1
Q
Atomic Radius
A
- across a period
- Radius DECREASES bc additional electrons are in the same energy level (not further from the nucleus) and the nucleus is more positive and pulls electrons harder
2
Q
Ionization Energy
A
- The amount of energy required to completely REMOVE a valence electron from an atom (making an ion)
- Every time you remove an electron it becomes harder
3
Q
Electron Affinity
A
- like
- A single atom’s attraction for an electron
- Energy change when an atom gains an electron
4
Q
Electronnegativity
A
- tug of war
- The tendency for an atom to attract electrons to itself when it is chemically BONDED with another element
(Florine is the strongest element)
-STRONG
5
Q
Polar
A
asymmetrical
6
Q
non polar
A
symmetrical
7
Q
Hydrogen bonding (H-NOF)
A
strong force
8
Q
Solubility
A
Like dissolves like
9
Q
Intermolecular Forces (IMF)
A
Force/bond that holds together molecules
10
Q
IMF ex:
LDF = London Dispersion Force
A
- weakest
- always there
- is what makes the molecules stay together in the first place
11
Q
IMF ex:
Di-Di = Dipole - Dipole
A
- middle
- polar
12
Q
IMF ex:
H - bonding
A
- strongest
- H-NOF
13
Q
VSEPR
A
- Valence
- Shell
- Electron
- Pair
- Repulsion
14
Q
Ionic compounds
A
- Transfers electrons
- metal + nonmetal
dissolve in H2O - Conduct electricity
- High melting point
15
Q
Covalent compounds
A
- Share electrons
- 2 or more nonmetals
- lower melting point
