Helium is an element. It is a noble gas with the atomic number 2 and is the second lightest element in the Periodic Table. Helium exists as single atoms and does not form compounds with other elements.
No, "Hg" is the chemical symbol for the element mercury. It is a naturally occurring element on the periodic table and is not a compound.
This is known as a single displacement or substitution reaction. In this type of reaction, the more reactive element displaces the less reactive element from its compound, causing a rearrangement of atoms and the formation of a new compound.
Hydrogen is lighter than air.
Steam is a mixture of water in its gaseous state, so it is not an element or compound but a mixture of water molecules.
Helium-4 and helium-3 are isotopes of helium. The main difference between the two is their atomic structure. Helium-4 has 2 protons and 2 neutrons in its nucleus, while helium-3 has 2 protons and 1 neutron. Helium-4 is more common in nature, whereas helium-3 is relatively rare.
No. Helium is not an compound, it is a element.
Helium is not a compound, it is an element.
Helium is an element.
Helium is an element.
Helium is not a compound, it is an element.
It is a element
Helium is an element.
No, helium gas is not a compound. Helium is an element, which means it consists of only one type of atom.
Helium is an element and not a compound or mixture.
element
No, helium inside a balloon is not a compound. Helium is a chemical element and is the second lightest element on the periodic table. It exists as individual helium atoms inside the balloon.
Helium is an element.