Question
Consider the four pairs of elements below. Which two pairs are most likely to form an ionic bond? Tap to select or deselect. When you hawe selected two answers, the Check Answer button is displayed. Ca and S Ô and Cl Sand O Al and O
Answer
4.4
(246 Votes)
Elizabeth
Master · Tutor for 5 years
Answer
The pairs that are most likely to form an ionic bond are:1. Ca and S2. Al and O
Explanation
Ionic bonds are formed when an atom donates one or more of its electrons to another atom. This usually happens between a metal and a non-metal. The metal, which needs to lose electrons to achieve a stable electron configuration, donates electrons to a nonmetal, which needs to gain electrons. 1. 'Ca and S': Calcium (Ca) is a metal that loses electrons, and Sulfur (S) is a non-metal that gains electrons. So, they can form an ionic bond.2. 'Cl and S': Both Chlorine (Cl) and Sulfur (S) are non-metals. They are more likely to form covalent bonds.3. 'O and S': Both Oxygen (O) and Sulfur (S) are non-metals. They are more likely to form covalent bonds.4. 'Al and O': Aluminium (Al) is a metal that loses electrons, and Oxygen (O) is a non-metal that gains electrons. So, they can form an ionic bond.