Question

This chart lists four elements from the periodic table.

A 2-column table with 4 rows labeled elements from the periodic table. The first column labeled name of element has entries calcium, gold, argon, iodine. The second column labeled classification has entries metal, metal, noble gas, nonmetal.
Atoms from which two elements would form ionic bonds?

calcium and gold
gold and argon
argon and iodine
iodine and calcium

Answer 1

Ionic bonds typically form between metals and nonmetals. In your list, calcium and iodine would form ionic bonds because calcium is a metal and iodine is a nonmetal.

So, the correct pair of elements that would form ionic bonds from your options is:

**iodine and calcium**.