Task: Please create a text description for a molecule.
SMILES: [121Sb]
Constraint: Answer the question with full sentences.
Result: 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.
Task: Please create a {#text |!}description for a molecule{# based on its representation|!}.
{#Molecule |!}{SMILES__description}: {SMILES#}
Constraint: Answer the question with {#full|complete!} sentences.
Result: {description#}
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.