ELECTRON
ARRANGEMENT
Heisenberg
Uncertainty Principle:
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GENERAL
LOCATION -------------------- ____________________
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V
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V
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V
SPECIFIC
LOCATION -------------------- ____________________
ENERGY
LEVELS - divisions of the electron
cloud
- numbered
consecutively from closest to farthest away from nucleus
.
Electrons will occupy the location with the lowest
amount of energy.
SUBLEVELS - divisions of energy levels
- designated by
letters (s, p, d, f)
- number of
sublevels in an energy level = # of the energy level
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ORBITALS - divisions of sublevels
- number of orbitals in an
energy level =
- “s” sublevel has 1 orbital; “p”
sublevel has 3 orbitals; “d”
sublevel has 5 orbitals;
“f” sublevel has 7 orbitals
HOW
MANY ELECTRONS CAN AN ORBITAL HOLD?
HOW
MANY ELECTRONS CAN EACH SUBLEVEL HOLD? “s”
= ___ e- “p” = ___ e- “d” = ___ e- “f” = ___ e-
HOW
MANY ELECTRONS CAN AN ENERGY LEVEL HOLD?
AUFBAU
PRINCIPLE –
What
is the order in which the sublevels fill with electrons? Use the DIAGONAL RULE.
1s
2s 2p
3s 3p
3d
4s 4p
4d 4f
5s 5p
5d 5f
6s 6p
6d 6f
7s 7p