Question

which element would most likely lose electrons to form positive ions when bonding with other elements? (1 point)
iodine (i)
rubidium (rb)
gallium (ga)
argon (ar)

Explanation:

Step1: Recall periodic - table trends

Elements on the left - hand side and bottom of the periodic table have a greater tendency to lose electrons.

Step2: Analyze each option

Iodine (I) is a non - metal in Group 17, it gains electrons. Rubidium (Rb) is an alkali metal in Group 1 and Period 5, it has a low ionization energy and readily loses its outermost electron. Gallium (Ga) is a metal in Group 13, but it is less likely to lose electrons compared to alkali metals. Argon (Ar) is a noble gas in Group 18 and has a stable electron configuration, so it does not lose electrons easily.

Answer:

Rubidium (Rb)