Use the periodic table to answer the question.

Question

An illustration shows the periodic table of elements.

Which of the following elements is most likely to form an ionic bond?

(1 point)
Responses

K and Cl
K and Cl

S and Cl
S and Cl

K and Ca
K and Ca

C and O

Answer 1

The most likely elements to form an ionic bond from the given options are K (potassium) and Cl (chlorine).

Ionic bonds typically form between metals and nonmetals. Potassium is a metal that tends to lose one electron to achieve a stable electron configuration, while chlorine is a nonmetal that tends to gain an electron. This transfer of electrons leads to the formation of an ionic bond between K and Cl, resulting in the formation of potassium chloride (KCl).

The other pairs are less likely to form ionic bonds:

• S and Cl (both nonmetals) may form covalent bonds.
• K and Ca (both metals) are unlikely to bond ionically.
• C and O (both nonmetals) typically form covalent bonds.

So the correct answer is K and Cl.