Describe the properties of noble gases. based on their electronic arrangement, explain whether they can exist alone in nature.
Describe the properties of noble gases. based on their electronic arrangement, explain whether they can exist alone in nature.
The answer to your question is below
Explanation:
Noble gases has their levels of energy completed so they can not react with another element, they can not interchange electrons .
electronic configuration
He 1 s ²
Ne 1s² 2s² 2p⁶
Ar [Ne] 3s² 3p⁶
Kr [Ar] 3d¹⁰ 4s² 4p⁶
Xe [Kr] 4d¹⁰ 5s² 5p⁶
Rn [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁶
In the electronic configurations we can see that Noble gases have 8 electrons in their outermost shell, so they do not need to react to be stable, they are stable.
The properties of noble gases are:
1. Noble gases or otherwise called inert gases are stable and non reactive or more correctly they are less reactive.
2. All the noble gases are monoatomic.
3. They are all colorless,odorless gases.
4. They have very low melting and boiling points due to low interatomic attractions.
They can exist alone in nature,as they have completly filled electrons in their shells.
Since their valence electrons are complete,they are stable, and can exist as atoms itself.
So they dont need to form bonds to form a molecule,hence all noble gases are monotaomic or exists alone in nature.
Hi~~
Noble gases are the elements found in Group 18 (XVIII), and are known to be STABLE, because they follow something called the octet rule or noble gas configuration (8 outermost electrons).
These elements are non-reactive, gases at room temperature, colorless, and odorless.
And based on your question, since they have 8 outermost electrons they are fully stable and exist alone in nature. Helium, neon, argon, krypton, xenon, and radon, all exist in nature as monoatomic gases, and will not react unless there are extreme conditions!
Source: myself (what I learned from chem.)