Question

Which of the following elements Will gain electrons to form an ion? Check all that apply.

Answer 1

Elements of group 17 in the periodic table gain 1 electron to form anions with a 1- charge.

Step-by-step explanation:

The question relates to the formation of ions by gaining electrons. Elements that typically gain electrons to form ions are nonmetals, as these tend to form anions (negatively charged ions).

For instance, elements in group 17 of the periodic table, which includes halogens like fluorine and chlorine, have a tendency to gain one electron to achieve a noble gas electron configuration. When this happens, they form anions with a 1- charge, such as fluoride (F-) or chloride (Cl-). Similarly, atoms of group 16 gain two electrons to form ions with a 2- charge.

In contrast, group 1 elements (alkali metals) tend to lose an electron and form positively charged cations. Therefore, the correct answer is that elements of group 17 will gain 1 electron to form an ion.