Question

A element with mass no. 81 contains 31.7%more neutrons as compared to protons. Assign the atomic symbol

Answer 1

idk whether this is correct but if we consider 100 protons than mass no. would be 131.7 as there are 31.7 more neutrons compared to protons so let no. of protons be x than
no.of protons=100×81÷131.7..
=61.5

Answer 2

Answer:

 this is correct but if we consider 100 protons than mass no. would be 131.7 as there are 31.7 more neutrons compared to protons so let no. of protons be x than

no.of protons=100×81÷131.7..

=61.5

Explanation: