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Why is helium is not location with the other s- orbital elemntes?
Wiki User
∙ 12y ago
Helium has a full outer shell of electrons and so is more like the other noble gasses than the other, much more reactive s-orbital elements. With the exception of hydrogen and helium all of the s-orbital elements are metals.
Wiki User
∙ 12y ago
Wiki User
∙ 6y agoIt is an inert gas, So it is in group 8
Helium has a close shell for the first energy level; therefor it exhibits properties similar to those of the noble gases. Letter C
Wiki User
∙ 13y agoIt is a noble gas and it has properties like that of the elements on the far right, so it is placed there. Also, it has a full electron shell, like the other noble gases.
Wiki User
∙ 11y agohelium has completely filled s orbitals. it is placed along with the noble gases which have completely filled p orbitals.
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What outer sublevels are completely filled in a noble gas?
s orbital for helium and p orbitals for other noble gases.
Why is helium normally placed in group 18?
We all know that helium is a noble gas. It has atomic number 2 but it is placed in 18 group be because in 1st group the elements have only one electron in thier s orbital e.g. Hydrogen, lithium, sodium, potassium etc. But helium has two electron so it cannot exist in 1 group. In second group the s orbital are same but the physical and properties of helium is different from the elements present in second group. According to modern periodic table elements which have same physical properties are placed in same group. Since helium is an inert gas and its physical properties are similar to the other elements of the 18 group and also helium discoverd late so that hilium can be put in the 18 group
Why is helium placed in group vii?
Helium has a full outmost valence shell. It is a nobel gas. it doesn't react with other chemicals. because the atomic number is 2 so it has to be in group 18 as it also has noble gases.
What other name for helium gas?
helium does not have any other names.
Does helium have carbon dioxide in it?
Helium does not combine with other elements and pure helium will not have carbon dioxide in it.
What is the smallest part of any chemical element that can combine with other elemntes to form compounds?
An atom
What outer sublevels are completely filled in a noble gas?
s orbital for helium and p orbitals for other noble gases.
What is the Lewis structure for He?
The Lewis structure for Helium is He with two dots next to each other, above the He symbol. The dots must be drawn next to each other, they represent the two electrons found in the 1s-orbital of the Helium atom.
Why is helium stable with a different arrangement?
All noble gases have completely filled orbitals. Helium has two valence electrons and its s-orbital is full and is stable. Other noble gases have completely fill p-orbitals as the valence orbitals.
Why is helium normally placed in group 18?
We all know that helium is a noble gas. It has atomic number 2 but it is placed in 18 group be because in 1st group the elements have only one electron in thier s orbital e.g. Hydrogen, lithium, sodium, potassium etc. But helium has two electron so it cannot exist in 1 group. In second group the s orbital are same but the physical and properties of helium is different from the elements present in second group. According to modern periodic table elements which have same physical properties are placed in same group. Since helium is an inert gas and its physical properties are similar to the other elements of the 18 group and also helium discoverd late so that hilium can be put in the 18 group
Can you Draw a Bohr model of helium?
Two electrons of Helium are not on the same circular orbital. The orbital planes of the two electrons are perpendicular to each other. By a computaional method, the length of both the two orbitals crossing perpendicularly is proved to be just 1 times de Broglie's wavelength when their total energy is consistent with the experimental value of Helium ground state energy. Please see Related links below to get the picture of a Bohr model of helium
Why helium exist in the form of he not he2?
he2 is a fatty. He atom is a inert gas. so it can not react with any other atom or molecules to form any compounds.so He2 can't exist. ANOTHER ANSWER: Helium atom has only one shell i-e K-shell which can accommodate a maximum of two electrons which it already has. therefore Helium atom does not need any more electrons to become stable as it is already stable by duplet rule. Thus helium atom does not combine with another helium atom and hence exists as He and not He2.
What is helium2?
Helium-2 would refer to an isotope of helium with a nucleus consisting of just two protons and having two orbital electrons. However, no such atom exists in nature as the two positively charged protons repel each other more strongly than the nuclear strong force attracts them to each other. So, even if such a nucleus could be formed somehow, it would split apart very quickly. On the other hand, if you add a neutron to the two protons in the nucleus, then the nuclear strong force is sufficient to keep the protons from flying apart. This, together with two orbiting electrons, is the stable helium-3 atom. The most common isotope of helium is helium-4, with two protons and two neutrons in the nucleus, and two orbital electrons.
Why is helium placed in group vii?
Helium has a full outmost valence shell. It is a nobel gas. it doesn't react with other chemicals. because the atomic number is 2 so it has to be in group 18 as it also has noble gases.
What other name for helium gas?
helium does not have any other names.
Why is helium in group 18 in the periodic table?
We all know that helium is a noble gas. It has atomic number 2 but it is placed in 18 group be because in 1st group the elements have only one electron in thier s orbital e.g. Hydrogen, lithium, sodium, potassium etc. But helium has two electron so it cannot exist in 1 group. In second group the s orbital are same but the physical and properties of helium is different from the elements present in second group. According to modern Periodic Table elements which have same physical properties are placed in same group. Since helium is an inert gas and its physical properties are similar to the other elements of the 18 group and also helium discoverd late so that hilium can be put in the 18 group
Helium can be combine with other element?
No. helium is chemically inert and does not combine with other elements.
