everyday science MCQ #48854

In many basic charts aluminium is a metal on the right side of a period that also includes nonmetals like phosphorus and chlorine. Which property contrast is most typical between aluminium and chlorine across Period 3?

everyday science MCQ #48854

  1. Question 1

    Q1. In many basic charts aluminium is a metal on the right side of a period that also includes nonmetals like phosphorus and chlorine. Which property contrast is most typical between aluminium and chlorine across Period 3?

    • A) Aluminium is a metal and often conducts electricity well as a solid while chlorine is a nonmetal with a covalent molecular form
    • B) Chlorine is a metal wire in household cables by default
    • C) Both are noble gases with full shells only
    • D) Aluminium is always a gas at room temperature in exams

    Answer: Aluminium is a metal and often conducts electricity well as a solid while chlorine is a nonmetal with a covalent molecular form

    Explanation: Aluminium is a metal with a sea of delocalized electrons enabling electrical conductivity; chlorine is a nonmetal forming diatomic Cl₂ molecules via covalent bonds and is a poor conductor—reflecting the metal-nonmetal transition across Period 3.