Noble Gases: Trends and Patterns
Edited by SarMal, Sharingknowledge
On the right hand column of the periodic table, you will see elements in group 0. These are called noble gases and all of them are non-reactive or inert.
The elements considered noble gasses are:
- Helium (He)
- Neon (Ne)
- Argon (Ar)
- Krypton (Kr)
- Xenon (Xe)
- Radon (Rn)
- Oganesson (Og)
The nobel gases have high ionization energy and very low electron affinity. Because of this, they considered non-reactive. With the exception of helium, the noble gases all have s and p electron coverings and are unable to easily create chemical compounds.
Noble gases all have similar properties that include:
- They are all considered non-metals.
- They are all colorless.
- They are all monatomic.
- They are all non-reactive.
Because they are non-reactive and chemically inert, the noble gases have the largest ionization energies.
Noble Gases: Trends
Noble gases also have shared trends that change (either increasing or decreasing) as you move down the noble gas column of the periodic table.
- 1This is because the atoms increase in size moving down the column.The noble gases have weak van Der Waals forces within their atoms.Advertisement
- 2The boiling points increase moving down the column.As non-metals, the noble gases have low boiling points.
- 3Atomic mass increases moving down the column.
- 4Helium has the lowest density while Radon is the densest gas. This increase relates to the increase in atomic mass moving down the column.The density of the noble gases also changes moving down the column.
- 5The increase of interatomic forces moving down the column also increases the melting point of each gas moving down the column.
- 6Because of the electron covering on all the noble gases except helium, their electrons generally remain the same.
- 7This is because the electrons in bigger noble gases are located away from the nucleus and held less tightly by the atom.As the radius increases moving down the column the potential for ionization decreases.
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Recent edits by: SarMal