An ion with mass number 37 possesses unit negative charge. If the ion contains 11.1% more neutrons than electrons. Find the symbol of the ions.

Explanation

Given that, `y = x + 11.1 %` of x
`= ( x + ( 11.1)/( 100) x ) = x + 0.111x`
`y = 1.111x`
mass number = 37
number of proton `+` number of neutrons = 37
`( x- 1) + 1.111x = 37`
`x + 1.111x = 38`
`2.111x = 38`
`x = ( 38)/( 2.11)`
`x = 18.009 x `
= 18 ( whole number)
`:.` Atomic number `= x -1 `
`= 18-1 = 17`
Mass number = 37
Symbol of the ion `""_(17)^(37)Cl^(-)`.