Ch 7 Flashcards
1
Q
Core Electrons
A
Those in filled or inner shells
2
Q
Valance electrons
A
Those beyond filled shells
3
Q
Effective Nuclear charge
A
Z = Z-S
eff
4
Q
Z
A
Nuclear Charge (atomic #)
5
Q
S
A
Number of shielding electrons
6
Q
Atomic Radius
A
Increase from R to L on Periodic table And Top to bottom ⬅️ ⬇️
7
Q
Ionization Energy
A
Minimum energy required to remove an electron from its ground state
+ -
X ➡️ X + e
(g) (g)
8
Q
Left to Right on Periodic Table
A
Increase Z
eff
Decrease size
9
Q
Moving down the periodic table
A
Z stays the same
eff
Increase size
10
Q
Electron Affinity
A
The energy change associated with the addition of an electron
- -
X + e ➡️ X
(g) (g)
+ -
X + e ➡️ X
(g) (g)
11
Q
➡️
⬆️
⬇️
A
More negative EA
Not much change in columns
12
Q
Electron Configuration
A
The order of filling orbitals
