Periodic Groups & Classifications
Group 17
Halogens
Isotopes differ in their number of
neutrons.
This principle states that electrons fill orbitals from lowest energy to highest energy level.
The Aufbau Principle
This group's configurations all end in Xs1
Alkali Metals
This many orbitals fill the p sub level
3
Most stable group on the Periodic Table
Noble Gases
This type of ion is formed due to the loss of one or multiple electrons
Cation
This principle states that only one electron of each spin direction can fit in an orbital.
Pauli exclusion principle
This group's configurations all end in Xp5
Halogens
This many electrons can fit in the f level
14
This group forms +1 ions
Alkali Metals
An equation to determine the charge of an ion
# protons - # electrons = charge
In which order would the following orbitals fill:
3p, 3s, 2p, 3d, 4s, 1s, 2s
1s, 2s, 2p, 3s, 3p, 4s, 3d
1s22s22p63s23p4
Sulfur
Number valence electrons in Alkaline Earth Metals
2
Hydrogen's classification
Nonmetal
Halogens form this type of ion (charge number included)
-1 anion
The difference between the electron configuration of Ar and Ca2+
They are the same- Cation lost 2 electrons to exist at a more stable state.
[Ar]4s23d104p5
Bromine
This many orbitals are needed to old the electrons in Carbon
4
Silicon's classification
metalloid
Caesium ion charge and type
+1 cation
How many orbitals does it take to hold electrons for Nitrogen?
5
[Xe]6s24f145d106p3
Bismuth
Order the sublevels:
4f, 5p, 5s, 6s, 4d, 5d, 6p
5s, 4d, 5p, 6s, 4f, 5d, 6p