Elements
Helium is an element- the second one in the periodic table.
Water is a compound of hydrogen and oxygen.
Water has no helium (He) atom. Chemically water is H2O and there is no He atom present in water.
an isotope of the element helium is obtained.
Helium has 2 valence electrons.
Elements are not species. Helium is an element. Helium can be a single atom.
Helium is an element because it contains only one atom in its simplest form.
Helium is an element- the second one in the periodic table.
No, helium gas is not a compound. Helium is an element, which means it consists of only one type of atom.
Water is a compound of hydrogen and oxygen.
If HE was a compound it would be a compound of H (hydrogen) and E (sorry there is no such element).If HE is an element then it is misspelled and should be He (helium).
Water has no helium (He) atom. Chemically water is H2O and there is no He atom present in water.
an isotope of the element helium is obtained.
"Atom" implies there's only one there. If there were more than one atom, you'd have a compound. Since helium's an element, all that's in it is helium.
Helium is a non metal element. There are 2 electrons in a single atom.
Helium has 2 valence electrons.
Water and sugar are not elements. Water is a compound made up of the elements hydrogen and oxygen, while sugar is a compound composed of carbon, hydrogen, and oxygen. Gold, on the other hand, is an element as it consists of only one type of atom - gold atoms.