User: I'm looking for the SMILES of a molecule that can be described by:
The molecule is the stable isotope of antimony with relative atomic mass 120.903818, 57.2 atom percent natural abundance and nuclear spin 5/2. It is an antimony(0) and an antimony atom.
Assistant: This is a molecule that fits your description: [121Sb]
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that can be described {#by|as!}:
{description#}
Assistant: This is a molecule that fits {#your|this!} description: {SMILES#}
antimony-121
The molecule is the stable isotope of antimony with relative atomic mass 120.903818, 57.2 atom percent natural abundance and nuclear spin 5/2. It is an antimony(0) and an antimony atom.