Friends and Family
Which trend describes the distance of an element's nucleus to the outside shell and what direction does it go in?
Atomic Radius- down and to the left
Sublevels
Sublevels prefer to be half full or full full.
Rule of Thumb
All elements in family 14 have electron configurations that end in_____.
p2
Which element has the highest electronegativity?
Fluorine
Which trend describes the energy required to pull away an electron and what direction does it go in?
Ionization Energy- up and to the right
There are numbered 1-7 on the PT.
Energy Levels
Electrons fill from the nucleus out.
Aufbau
Write the long EC for F.
1s2 2s2 2p5
The arrows in orbital fill diagrams are used to show the ____ of electrons.
What is the definition of electronegativity?
These can hold only 2 electrons.
Orbitals
Electrons in the same orbital must have an opposite spin.
Pauli Exclusion
Which element has this configuration:
[Ne] 3s2 3p1
Aluminum
Why can we compare emission spectrum to fingerprints?
Unique to each element, like a fingerprint is to a human.
Rank the elements from greatest to least by atomic radius.
O, Be, Ne, F, Li
Li, Be, O, F, Ne
A list of elements decreasing by reactivities is called what?
Activity Series
You can not know the momentum and position of an electron.
Heisenberg Uncertainty Principle
Write the abbreviated configuration, orbital notation, and Lewis Dot for Europium
[Xe] 6s2 4f7
Rank the elements from least to greatest by electronegativity.
O, Be, Ne, F, Li
Ne, Li, Be, O, F
More energy levels in an atom cause the atom to get bigger as well as the electronegativity and ionization energy to go down. What is this called?
The shielding effect.
Emission Spectrum
Which rule does this EC violate?
1s2 2p6 2s2
Aufbau
Write the abbreviated, Lewis Dot, and orbital fill for Copper.
[Ar] 4s1 3d10
The nuclear force.