Question

Which of the following is trivalent? Sodium, magnesium, and aluminum.

Answer 1

Trivalent is aluminium.

Answer 2

Dear Student,

◆ Answer -

Aluminium is trivalent element.

● Explanation -

• Valency is the combining capacity of an element.
• Electronic configuration of aluminum is 2, 8, 3
• As aluminum has 3 free electrons in its outermost orbit, it donates them to form a trivalent ion.
• Hence, aluminium is trivalent element.
• For example, aluminum combines with chlorine to form AlCl3.

Thanks dear for asking. Hope this helps you..