benaguliarben benaguliarben

18-10-2016
Physics

Answered

The atomic symbol 206

82 Pb represents lead-206 (Pb-206), an isotope that has 82 protons and 124 neutrons. Which atomic symbol could represent an isotope that undergoes radioactive decay to produce Pb-206?

A238

92 U

B222

87 Pb

C178

72 HfD. 192 77 Pb

Verified Answer :

julieee2 julieee2

18-10-2016

A? I'm not quite sure

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