Noble Gases vs. Halogens: Which Has a Greater Atomic Radius?

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Thread starter rpthomps
Start date Feb 8, 2018
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Atomic Gases Noble gases Radius

In summary, the atomic radius for noble gases is the distance from the nucleus to the outermost electron shell, and it generally increases from top to bottom in the periodic table. This is due to the addition of more electron shells. Noble gases have a larger atomic radius compared to other elements because of their full valence electron shell, which makes them stable and less reactive. The larger atomic radius also contributes to their low reactivity and high stability, making them useful in various applications. While the atomic radius of noble gases can slightly change in different chemical environments, it remains relatively constant due to the full valence electron shell.

Feb 8, 2018

rpthomps

Does the noble gases have an atomic radius decrease or increase from halogens?

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Feb 8, 2018

Lord Jestocost

Gold Member

You can compare the atomic radii by using, for example, the "Periodic Table of Elements" from the Los Alamos National Laboratory: http://periodic.lanl.gov/list.shtml

1. What is atomic radius for noble gases?

The atomic radius for noble gases is the distance from the nucleus to the outermost electron shell in an atom of a noble gas. It is a measure of the size of the atom.

2. How does atomic radius vary for different noble gases?

The atomic radius for noble gases generally increases from top to bottom in the periodic table. This is due to the addition of more electron shells as you move down the group.

3. Why do noble gases have larger atomic radius compared to other elements?

This is because noble gases have a full valence electron shell, making them stable and less reactive. The full electron shell causes the atoms to expand, resulting in a larger atomic radius.

4. How does atomic radius affect the chemical properties of noble gases?

The larger atomic radius of noble gases contributes to their low reactivity and high stability. This makes them ideal for use in various applications such as lighting, welding, and as an inert gas in chemical reactions.

5. Can the atomic radius of noble gases change?

The atomic radius of noble gases can slightly change in different chemical environments, but not to a significant extent. The overall size of the atom remains relatively constant due to the full valence electron shell.