"Type" is ambiguous in this context. Do you mean isotopes? Or do you mean states of matter? (Helium has some exotic states of matter.)
Wikipedia states that there are 8 helium isotopes, to of them (3-He and 4-He) stable.
"Type" is ambiguous in this context. Do you mean isotopes? Or do you mean states of matter? (Helium has some exotic states of matter.)
Wikipedia states that there are 8 helium isotopes, to of them (3-He and 4-He) stable.
"Type" is ambiguous in this context. Do you mean isotopes? Or do you mean states of matter? (Helium has some exotic states of matter.)
Wikipedia states that there are 8 helium isotopes, to of them (3-He and 4-He) stable.
"Type" is ambiguous in this context. Do you mean isotopes? Or do you mean states of matter? (Helium has some exotic states of matter.)
Wikipedia states that there are 8 helium isotopes, to of them (3-He and 4-He) stable.
"Type" is ambiguous in this context. Do you mean isotopes? Or do you mean states of matter? (Helium has some exotic states of matter.)
Wikipedia states that there are 8 helium isotopes, to of them (3-He and 4-He) stable.
The answer is 8,1547.10e25.
Helium is 4g/mol, so 6.46g of helium is 6.46/4=1.62 moles He.
2
Helium IS an atom. It has 2 electrons and 2 protons making it a noble gas.
2 electrons
Oxygen, hydrogen, helium, neon and xenon are some types of gases. There are many types of gases being; hydrogen, oxygen, anaesthetic gas, natural gas,helium,neon and carbon dioxide
Helium is an element, so it is made of only one type of atom.
It could possibly be many types of gasses. The most common is helium(He)
helium stars
Helium is an element (abbreviated "He"). Elements are types of substance that, when combined, form compounds and chemicals.
helium,hydrogen.
Helium has one kind of atom: helium.
Helium has 2 electrons.
Helium has 2 protons.
Helium has only one type of gas (which is helium itself)
The number of helium atoms is 6,022 140 857.10e26.
The answer is 8,1547.10e25.