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Why is helium placed in group 8 if it has two valence electrons?
Wiki User
∙ 12y ago
Since 2 electrons fills it's outer shell it is considered an inert gas.
Wiki User
∙ 12y ago
Anonymous
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How is helium similar to group two elements?
helium has 2 valence has electrons. Group 2 elements also have 2 valence electrons.
Why is helium's position not justified in periodic table?
Helium has 2 valence electrons and it should theoretically be placed along with group 2 elements. But since helium has completely filled orbitals (as do the noble gases), it is placed along with the noble gases.
How many electrons are in the outer energy level of a helium atom?
Helium and hydrogen and group 3 to 12 got 2 valence electron
What is the position of helium on the periodic table snd its chemical properties based on that position?
Helium is placed at the top of the group-18 in periodic table. Its valence shell contains 2 electrons. It is inert in nature like other elements of group-18.
Does helium have the same amount of valence electrons as the others in its group?
No it does not, there are shells and orbitals that determines how reactive an atom is. Helium has 2 valence electrons, which fill up its entire shell, so it is like a noble gas. the other noble gasses have 8 valence electrons, which fill up their entire shell.
How is helium similar to group two elements?
helium has 2 valence has electrons. Group 2 elements also have 2 valence electrons.
How many valence have He?
As helium is located in group 18, it has no valence electrons.
Which atoms have the same valence as helium?
Helium has 2 valence electrons. Group 2 elements (alkaline earth metals) also have 2 valence electrons.
Why is helium's position not justified in periodic table?
Helium has 2 valence electrons and it should theoretically be placed along with group 2 elements. But since helium has completely filled orbitals (as do the noble gases), it is placed along with the noble gases.
In group 8 on the Periodic Table what element does not have 8 valence electrons?
Helium. It has 2 electrons in its single shell.
How many electrons are in the outer energy level of a helium atom?
Helium and hydrogen and group 3 to 12 got 2 valence electron
What is the position of helium on the periodic table snd its chemical properties based on that position?
Helium is placed at the top of the group-18 in periodic table. Its valence shell contains 2 electrons. It is inert in nature like other elements of group-18.
Does helium have the same amount of valence electrons as the others in its group?
No it does not, there are shells and orbitals that determines how reactive an atom is. Helium has 2 valence electrons, which fill up its entire shell, so it is like a noble gas. the other noble gasses have 8 valence electrons, which fill up their entire shell.
Is helium an ion?
Yes helium is an atom. It is stable. It is placed in group 18.Yes, helium is a monoatomic molecule. It is stable itself as it has already achieved maximum possible electrons in its outermost shell. It is the only element in group 18 without 8 electrons in valence shell.
Why is hydrogen placed with the element in group 1a?
valence electrons and electronic configuration.
Where and why is nitrogen placed on the periodic table?
Nitrogen is placed in group-15. It comprises of 5 valence electrons.
What do elements in families have in common?
they all have the same amount of valence electrons. Except with group 18 they all are the same except for Helium which has 2 valence electrons.
