Task: Please create a description for a molecule.
SMILES: [29Si]
Constraint: Answer the question with full sentences.
Result: The molecule is the stable isotope of silicon with relative atomic mass 28.9764947, 4.683 atom percent natural abundancy, and nuclear spin (1)/2.
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#}
[29Si]
[29Si]
silicon-29
The molecule is the stable isotope of silicon with relative atomic mass 28.9764947, 4.683 atom percent natural abundancy, and nuclear spin (1)/2.