Question

An element 'A' forms a chloride $AC{l}_4$. The number electronic in the valence shell of 'A'.

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

The correct option is D 4

Element $"A"$ forms a chloride $AC{l}_4$. Valence electrons of chlorine $=1$ . Valence electrons of element ${}^{\prime }{A}^{\prime }=4$. Therefore, it from a chloride with a molecular formula of $AC{l}_4$. Valency is the number of free electrons in the outermost shell of an element and the valence electrons help in formation of compounds.