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Helium exists in the form of He and not He2 because He has already stable,does not take part in a chemical reaction.But when one atom combines with other atom in a chemical reaction to form bond to complete its outermost shell and attain stabilty while He does not combine with other atom to form bond.This is the reason for helium does not exist in the form He2 or molecule form
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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.
Why does H2 molecules exist when He2 does not?
H2 technically does contain molecules. Or at least, molecule. H2 is two hydrogens covalently bonded, so that the lowest energy level is filled. Since H2 has two atoms (hydrogen and hydrogen), it is not an element, because there is more than one atom. H2 is a molecule itself. However, in context of nature, it is rare that you would ever find an H2 molecule on its own unless you were working with one in a laboratory. So, if you were considering the whole of an H2 gas, there would be many molecules of H2. Short answer: H2 is a molecule itself. Many H2 means there are many molecules of H2.
Do you live on the earth or in the earth?
We live on the earth's surface. That is, we live on the earth. But no doubt, we cant see the universe from here cause we have a atmosphere of air, or envelop of air covering the earth. It has certain layers and how can we forget ozone? So, we live ON the earth.
How many states can matter exist?
Matter can exist in three states: solid, liquid, and gas. These states are determined by the arrangement of particles and the amount of energy they possess. At extreme conditions, matter can also exist in plasma, Bose-Einstein condensates, or other exotic states.
What three states of water can exist in the atmosphere?
Water vapor, liquid water droplets, and ice crystals are the three states of water that can exist in the atmosphere.
What is the bond order for He2?
He2 does not exist. MO theory predicts a bond order of zero.
Why he2 does not exist .explain in terms of lcaos?
Helium is a noble gas and it is chemically stable.It does not have valence electrons to form bonds.
Is He2 joined by a double covalent bond?
He2 does NOT exist, Helium is a noble gas and a mono-atomic elementary gas (He)
Does helium exist as he2?
No, helium exists as He, with a single electron in its outer shell. The H2 molecule refers to two hydrogen atoms bonded together.
He2 ping2 mean in Chinese?
peace
What does he mean in Chinese?
The Chinese character 和（he2) means "and."
How can get love from anyone?
you cant...you doesnt exist
Can talking stones exist?
Nope.... it cant
How do download grooveshark to your Wii?
you cant doesn't exist....................................
Why he2 exists only in discharge tubes?
He2 exists only in discharge tubes because it is an excited state of the helium atom that is created in the high-energy environment of discharge tubes. When electrical energy is passed through the tube, helium atoms are ionized and excited to create He2 molecules, which are unstable and quickly dissociate back into individual helium atoms.
Is HE2 a van der waals?
He2 is a molecule where the bonding is only due to van der waals interactions as the molecular orbital diagram shows that both the bonding and antibonding sigma orbitals are full.
What diatomic molecules is joined by a double covalent bond O2 cl2 n2 he2?
O2 and N2 are diatomic molecules that are joined by a double covalent bond. Cl2 and He2 do not exist as stable diatomic molecules with double covalent bonds.
