The molecule with the SMILES representation of [4He] can be described by:
The molecule is the stable isotope of helium with relative atomic mass 4.002603. The most abundant (99.99 atom percent) isotope of naturally occurring helium. It contains an alpha-particle.
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} can be described {#by|as!}:
{description#}
helium-4
The molecule is the stable isotope of helium with relative atomic mass 4.002603. The most abundant (99.99 atom percent) isotope of naturally occurring helium. It contains an alpha-particle.