Question

hi
can anyone please tell me what is helium
please give the answer ​

Answer 1

Answer:

Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements.

Symbol: He

Symbol: HeAtomic mass: 4.002602 u

Symbol: HeAtomic mass: 4.002602 uAtomic number: 2

Symbol: HeAtomic mass: 4.002602 uAtomic number: 2Electron configuration: 1s2

Symbol: HeAtomic mass: 4.002602 uAtomic number: 2Electron configuration: 1s2Boiling point: -268.9 °C

Answer 2

Answer:

Helium is a gas

Explanation:

Helium is a gas with an atomic no. of 2. This gas is a noble gas and is filled in balloons.

Hope it helps :)