Question

Calculate the ratio of neutrons to protons in lead-206 and uranium-238. In which nucleus is the ratio closer to 3:2?

Answer 1

Pb =- Lead No. 82 Wt 206 N = 206 - 82 = 124 Rat = 124/82 = 1.5`1

U = Uranium No. 92 Wt 238 N = 238 - 92 = 146 Rat = 146/92 = 1.59

3:2 = 1.50 Pb is closer to 3:2