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The noble gases is the most stable group of elements. They have their outer electron energy levels full, but the number of electrons vary according to which noble gas it is. They are group 18 on the Periodic Table.

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9y ago
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9y ago

The noble gases with 8 valence electrons are the most stable group.

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13y ago

how many electrons do the elements of the most stable group have in their outer energy level?

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13y ago

Most need 8 electrons in the valence shell. :)

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Q: How many electrons are required in the outer energy level for most elements to be stable?
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Continue Learning about Chemistry

What causes an element to be reactive?

In the short form: elements are striving to completely fill valence shells of electrons to reach a quantumly stable energy state. They react to take electrons away from elements willing to give up electrons or share outer shell electrons with elements they aren't strong enough to steal from.


Why do elements in the top right corner have high ionization energies?

Ionization energy is the energy required to remove an electron from an atom. In the case of hydrogen, its one and only electron is very close to the nucleus, because it is in the first energy level (that electron's ground state.) So, the attraction between the nucleus (positive) and that electron (negative) is quite strong due to their closeness. As you move down group 1, the electrons get farther and farther away from the nucleus, and the attraction, predictably, decreases. This means lower ionization energy required the lower you go on the group.


How many electrons do the elements of the most stable group have in their outer shells?

Most of the noble gases have 8 electrons in their outer shell, but helium has only 2, and is the most stable of all elements.


Why do elements in group 18 rarely react with other elements?

Elements in Group 18 already have an octet of electrons, which is a full outer shell of 8 electrons. An octet of electrons makes the element stable, so it does not need to react with any other elements to gain or lose electrons.


An atom is stable when it?

it can be stable by completing their octet & minimizing their energy

Related questions

What group of elements has a staple number of electrons in their outer energy level?

Group 18 elements have a stable octet.


What is the groups number for elements that have a stable number of electrons in their outer energy level?

Group 8


What is the group number for elements that have a stable number of electrons in their energy levels?

They r noble gases which have stable valance shell and grotp no. 18


Why are some elements stable on their own while others are more stable in compound?

Some elements are stable on their own because they have a complete outer energy level. These elements are called noble gases. Hydrogen and Helium have a complete energy level with two electrons and all of the other elements are stable with eight. When an element doesn't have a complete outer energy level it is stable in a compound. This is because it is being combined with another element to complete it's energy level.


How do element become stable?

The elements can only be stable when it complete is octate in its outer most orbit has 8 electrons in its outer most orbit by gaining or losing energy


What is the group number for elements that have stable number of electrons in their outer energy level?

They r noble gases which have stable valance shell and grotp no. 18


What is the group number of elements that have a stable number of electrons in their outer energy level?

They r noble gases which have stable valance shell and grotp no. 18


Are elements with 8 outer electrons stable?

yes


How does silicon become stable?

Elements get stable only when it completes electron octate in its outermost orbit. Elements make compounds with other elements to gain or reduce electrons to get stability. silicon make bonds with oxygen and make silicon dioxide to get stable.


What causes an element to be reactive?

In the short form: elements are striving to completely fill valence shells of electrons to reach a quantumly stable energy state. They react to take electrons away from elements willing to give up electrons or share outer shell electrons with elements they aren't strong enough to steal from.


Do noble gases have the maximum number of electrons in their outer energy level?

Yes, the outermost energy level of the atoms of the noble gases are filled, meaning that they have the maximum number of electrons. This is why noble gases are stable and unreactive. The atoms of reactive elements share or transfer electrons in order to fill their outermost energy levels, making them stable like the noble gases.


What is the group number for elements that have a stable number of electron spin their outer energy level?

The inert or noble gases have a stable full outer shell of electrons which is why they are so unreactive.