What is 206 Pb mass number?

2 Answers
Sep 5, 2016

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

Explanation:

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

Sep 5, 2016

206

Explanation:

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.