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Helium has only two valence electrons. All other noble gases have 8 valence electrons.
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The number of electrons in a helium atom?
Helium has only two electrons. It is the first noble gas in the periodic table and has a full outer electron shell.
Why Helium will not react with anything because it has a complete outer electron shell?
Normally, when elements react they do so to attain a full outer shell, which is stable. Helium already has a full outer shell and so does need to not react to attain one.
How to Use valence electron configuration to explain why helium is safer than hydrogen for use in airships?
Helium had valence electron of 2 and filled the most inner ring so it is chemically robust and inert. Outer valence electron ring contain 8 electrons so for Neon is robust as it had 2,8 electrons and Argon had 2,8,8 electrons and fill the outer ring.
Why is Helium considered a stable element?
Under normal conditions Helium will not react with anything because it has a complete outer electron shell.
34)why The naturally occurring helium atom is chemically inert?
Helium has completely filled orbitals and is hence chemically inert.
What is special about the outer electron orbits of helium neon and argon?
unreactive
What atom has two electron in outer core?
Helium(He)
How many electron are in the outer shell of helium?
2 valence electrons for helium (helium has only 1 shell)
The number of electrons in a helium atom?
Helium has only two electrons. It is the first noble gas in the periodic table and has a full outer electron shell.
Why Helium will not react with anything because it has a complete outer electron shell?
Normally, when elements react they do so to attain a full outer shell, which is stable. Helium already has a full outer shell and so does need to not react to attain one.
Is metal a condutor of heat?
Metals have delocalised electrons in their outer electron orbits which can move to conduct electricity and heat.
Lewis dot diagram for helium?
He :The number of electrons in an atom's outer electron shell determines how many dots there are. Helium has 2 electrons in its outer electron shell, so 2 dots.
What are intervening electrons?
The electrons which are present in the inner orbits relative to an electron in the outer orbit and hence they cause the shielding effect for the outer electron. The word intervening literally means to come between so as to interrupt.
How to Use valence electron configuration to explain why helium is safer than hydrogen for use in airships?
Helium had valence electron of 2 and filled the most inner ring so it is chemically robust and inert. Outer valence electron ring contain 8 electrons so for Neon is robust as it had 2,8 electrons and Argon had 2,8,8 electrons and fill the outer ring.
Why is lithium an element?
Li, Lithium has one electron in its outer shell. Valence electrons occupy the orbits furthest from the nucleus,
Why is Helium considered a stable element?
Under normal conditions Helium will not react with anything because it has a complete outer electron shell.
Why is lithium an univalent element?
Li, Lithium has one electron in its outer shell. Valence electrons occupy the orbits furthest from the nucleus,
