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Inert gases are the most stable ones, so if we try to add another electron, the stable electronic configuration is disturbed. So, we have supply energy for this process. Hence, electron gain enthalpy is positive.

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12y ago
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3mo ago

The electron gain enthalpy of inert gases (group 18) is positive because their electron shells are already filled with electrons, making it difficult to add additional electrons due to strong electron-electron repulsions. Adding an electron to an inert gas would disrupt the stable electron configuration, requiring significant energy input. This leads to a positive electron gain enthalpy for inert gases.

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Q: Why is electron gain enthalpy of inert gases positive?
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Related questions

What group of elements have an outermost electron shell that is complete?

Inert gases


What are noble gases also known as?

Noble gases are also known as inert gases because they are generally unreactive due to their full outer electron shells.


Which group of the periodic table do exceptionally inert gases belong and why are they inert?

Exceptionally inert gases belong to Group 18 (Noble gases) in the periodic table. They are inert because their outermost electron shells are full, making them stable and less likely to form chemical bonds with other elements. This full electron shell configuration results in low reactivity, hence their classification as inert gases.


Why inert gases are always stable?

Inert gases are stable because they have a full outer electron shell that is already filled with electrons. This full electron shell makes them less likely to gain or lose electrons to form chemical bonds with other elements, leading to their inert behavior.


Is it true or false that Noble gases are inert gases?

True. Noble gases are inert because they have a full outer electron shell, making them stable and unlikely to react with other elements.


Is neon metal?

No. Neon (symbol Ne, atomic number 10) is an inert gas. Inert gases are also known as rare gases or noble gases and are generally unreactive due to a full outer electron shell.


Why is a noble gas inert?

Noble gases have a stable electron configuration. So they are less reactive.


Why are the elements helium argon and neon called inert gases?

These elements are called inert gases because they are extremely stable and unreactive due to their full outer electron shells. This stability makes them unlikely to form chemical bonds with other elements.


Why are some noble gases called inert gases?

Noble gases are called inert gases because they are the least reactive elements due to their stable electron configuration. They have a full outer electron shell, making them highly stable and unlikely to form chemical bonds with other elements. This inertness gives them low reactivity under normal conditions.


What has a full outer electron shells which makes them inert?

All noble gases or group 18 elements.


The noble gases are inert This means they?

do not easily react with other elements or form compounds under normal conditions. Their outer electron shell is full, making them stable and unreactive.


What is it called when an electron has 8 electrons in its outer shell?

When an electron has 8 electrons in its outer shell, it is considered to have a stable configuration known as an octet. This stable configuration is achieved by filling the outermost energy level with 8 electrons, following the octet rule.