An element with mass number 81 contains 31.7% more neutrons as compare to protons find out atomic symbol of element.
An element with mass number 81 contains 31.7% more neutrons as compare to protons find out atomic symbol of element.
7 views
1 Answers
Let protons = x
Mass number = P+n
Then neutrons= x + 31.7% of x
81= x + 1.317x
X=35
Symbol= Br
7 views
Answered