Lecture 3 Flashcards
1
Q
Energy level
A
A region of definite energy within the atom that electrons can occupy.
2
Q
Orbital
A
A region or volume of space within which there is a high probability of finding an electron.
3
Q
Types of orbital
A
S orbital - sphere shape - can hold up to 2 electrons.
P orbital - dumb-bell shape - can hold up to 6 electrons. (Px, Py, Pz).
4
Q
Electronic configuration
A
Describes how the electron(s) of the atom are arranged in its energy levels, sub-levels and orbitals.
1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10.
5
Q
The Aufbau Principal
A
States that the lowest energy level is always filled first.
6
Q
Hunds Rule
A
Electrons occupy separately in orbits first and then in pairs.
