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Since 2 electrons fills it's outer shell it is considered an inert gas.

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13y ago

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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.


What is heliums number of valence electrons?

Helium has 2 valence electrons. Being in Group 18 of the periodic table, helium is a noble gas and has a full outer electron shell.


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.


Which element has the fewest valence electrons?

Helium has the fewest valence electrons, with only 2 valence electrons.


Which group contains the least number of valence electrons?

Noble gases contain the least number of valence electrons, with a full outer shell of eight electrons (except for helium, which has two valence electrons).


In group 8 on the Periodic Table what element does not have 8 valence electrons?

Iron (Fe) is in group 8 on the Periodic Table and it does not have 8 valence electrons. Iron has 2 valence electrons in its 4s orbital and 6 valence electrons in its 3d orbital, making a total of 8 valence electrons.


How to determine the number of valence electrons in an atom?

To determine the number of valence electrons in an atom, look at the group number on the periodic table. The group number indicates the number of valence electrons. For example, elements in group 1 have 1 valence electron, while elements in group 18 have 8 valence electrons (except for helium, which has 2).


How do you work out the number of valence electrons in a substance?

To determine the number of valence electrons in an element, look at its group number on the periodic table (group 1-18). The group number represents the number of valence electrons the element has. For example, elements in group 1 have 1 valence electron, while elements in group 18 have 8 valence electrons (except for helium, which has 2).


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.


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


Which elements tend to possess the same number of valence electrons?

Elements in the same group or column of the periodic table tend to possess the same number of valence electrons. For example, all elements in Group 1 (such as lithium, sodium, potassium) have 1 valence electron, while elements in Group 18 (like helium, neon, argon) have 8 valence electrons except for helium, which has 2.