OnlineCBT
Chemistry · Structure of atom
हिन्दीAn ion with mass number \( 37 \) possesses one unit of negative charge. If the ion contains \( 11.1\% \) more neutrons than electrons, identify the symbol of the ion.
Correct answer · Option 3
\( {}^{37}\text{Cl}^- \)
Explanation
Let electrons = \( e \), then neutrons = \( n = e + 0.111e = \frac{10}{9}e \). Mass number \( A = p + n = 37 \). Since ion has 1 negative charge, \( p = e - 1 \). Solving gives \( p = 17 \) (Chlorine).
