What is 206 Pb mass number?

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Answer 1 · 2016-09-05T14:48:48

The mass number of the #""^206Pb# isotope is #206#.

For lead, #Z=82#; if it's the #""^206Pb# isotope their are #206-82=124# neutrons.

Answer 2 · 2016-09-05T14:50:23

206

The atomic number of Pb-206 is 82. Since it is an isotope, only the number of neutrons is different, which is 124 instead of the usual 125.