He - Helium
Helium is the second element in the Periodic Table of Elements with an atomic number 2. We know it to be the stuff that makes your voice go high pitched after sucking the gas out of a party balloon.
#happy
Helium is the second element in the Periodic Table of Elements with an atomic number 2. We know it to be the stuff that makes your voice go high pitched after sucking the gas out of a party balloon.
#happy
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