207.2
Chat with our AI personalities
The element with an atomic mass of 207.20 is lead (Pb).
The atomic mass of lead (Pb) is approximately 207.2 atomic mass units.
The element with 82 protons and an atomic mass of 166 is lead, with the chemical symbol Pb.
The element you are referring to is lead (Pb). It is a very dense metal with an atomic mass of 207.2.
Cobalt (Co) has a smaller atomic mass than Lead (Pb). Cobalt's atomic mass is only 58.9332 while lead's is 207.2.