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Helium is unreactive as it has a completely filled outer (valence) shell. Its electronic configuration is 1s2. The ouer shell of the next heaviest noble gas neon is also full, and its electronic configuration is 1s2 2s22p6. However the heavier elements in the group Argon, Krypton, Xenon have the same ns2 , np6 octet as Neon which imparts considerable stability but means that the outer valence shell is not complete and as a consequence these elements have compounds, albeit highly reactive ones.
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∙ 10y ago
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∙ 12y agoHydrogen is extremely reactive, possessing only 1 valence electron in the S orbital. This allowed for both the gain and loss of a single electron, as the S orbital contains only two. This allows hydrogen to bond with various elements in a unique way, and also allows it to form the unique bonds which support life.
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∙ 11y agoBecause both have completely filled valence orbitals and are hence stable.
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∙ 11y agoHelium has completely filled valence orbitals, is stable and non-reactive.
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∙ 11y agoHelium is one of the Noble Gases like Neon, Argon, etc.
Their valence ring is full so it has no interest in reacting with anything
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What element would have a full valence shell on the periodic table?
The noble gases helium and neon are the only elements with completely full outer shells.
Why helium does not form ion easily?
it is a noble gas and is averse to losing its electrons from the outer shell of its atom and in which case it would become electrically charged
What does calcium not bond with?
I would imagine, logically, Calcium would react with every element except the Noble Gases - as they already have full outer energy levels, thus being unreactive. You will often find one calcium reacting with one element from group 6, for example Oxygen. CaO (as they strive to reach a full outer shell.)
What chemical groups are inert and generally not involved in chemical reactions?
Atoms that have 8 electrons in their outer shell are "inert." These would most likely be the noble gases. Like: Helium, Neon, Argon, etc.
How many many outer shell electrons would an atom of antimony have?
15
What type of bond would likely form with Helium and Helium atoms?
No bond at all, He has a complete outer shell
Why it would be coreect to say that helium has chemical properties?
But of course. One of its properties is that it is very unreactive.
What element would have a full valence shell on the periodic table?
The noble gases helium and neon are the only elements with completely full outer shells.
Why helium does not form ion easily?
it is a noble gas and is averse to losing its electrons from the outer shell of its atom and in which case it would become electrically charged
An atom of element X has two outer electrons that do not fill the outer shell is it a metal?
It would be a non-metal and a halogen. Group 18 or the noble gases, all have 8 electrons in their outer shell. Therefore, the group before it would have seven electrons in the outer shell. This group is made up of all non-metals.
What is the outer shell of a chimpanzee?
That would be their skin.
What does calcium not bond with?
I would imagine, logically, Calcium would react with every element except the Noble Gases - as they already have full outer energy levels, thus being unreactive. You will often find one calcium reacting with one element from group 6, for example Oxygen. CaO (as they strive to reach a full outer shell.)
What is an example of an unreactive element?
Basically all the noble gases as they have a stable electronic configuration and therefore they would not share their electrons with other atoms. -- Actually, the noble gases have been synthesized in labs to form noble gas compounds. Gold and platinum are both unreactive elements. There are probably more though.
How many electrons would be expected in the outer most shell of an atom with an atomic number of 10?
Given what we know about electron structure, we would expect there to be 8 electrons in the outer shell of an atom with the atomic number of 10. And that's how many there are. Element 10 is neon, and like all noble or inert gases, it has a full outer shell.There are only two electron shells for all the elements up through element 10 (neon). The first shell will only accept 2 electrons. That's the s shell, and it's the outer shell (and the only shell) for helium (the lightest inert gas). The next 8 electrons will fill the second electron shell, which is the p shell. That means element 10 (the inert gas neon) will have a full s shell (2 electrons) and a full p shell (8 electrons).
What chemical groups are inert and generally not involved in chemical reactions?
Atoms that have 8 electrons in their outer shell are "inert." These would most likely be the noble gases. Like: Helium, Neon, Argon, etc.
What would be the charge of a beryllium atom that has a full outer shell?
Beryllium has 2 outer shell electrons. Its full electronic configuration is:- 1s2, 2s2
What would describe the Earth's outer core?
an egg shell....
