The mass number of x is 81 and it contain 31.7% more neutrons when compared to protons. Then x is represented as

mass number = 81given that number of neutrons are 31.7% more than protonslet no. of protons = xno. of neutron = 1.317 xNumber of protons + Number of neutrons = mass numberx + 1.317x = 812.317x = 81  Thus, number of protons = 35The nuclide is