[{"from": "human", "value": "What can you tell me about this molecule? [2HH1]"}, {"from": "gpt", "value": "The molecule is the stable isotope of hydrogen with relative atomic mass 2.014102 and a natural abundance of 0.0115 atom percent (from Greek deltaepsilonupsilontauepsilonrhoomicronnu, second). It contains a deuteron."}]