Question

Species X with mass number 37 contains 11.1 % more neutrons as compared to electrons , then what is the incorrect repesentation of element x?
A. `underset(17)overset(37)""Cl^(-)`
B. `underset(17)overset(37)""Cl`
C. `underset(17)overset(35)""Cl^(-)`
D. `underset(17)overset(35)""Cl`

Answer 1

Correct Answer - b,c,d,
Since mass number is 37, optons (c ) ,(d) arae not possible
Now , according to option (A) and (b) no. of neutrons
`=20 .No "of " e^(-) =(20)/(1.111) = 18` Hence spcies is `""_(17_^(37) cl^(-)`