Question

of all the group 13 metals, i am the one with the least mass who am i? view periodic table tap on an option below to select or deselect an answer. chlorine (cl) thallium (tl) oxygen (o) aluminum (al) gallium (ga) fluorine (f) boron (b) zinc (zn)

Explanation:

First, identify Group 13 elements: Boron (B), Aluminum (Al), Gallium (Ga), Indium (In), Thallium (Tl). Next, filter out non-Group 13 options (Chlorine, Oxygen, Fluorine, Zinc are not in Group 13). Then, compare atomic masses of remaining Group 13 elements: Boron has the lowest atomic mass (~10.81) among them.

Answer:

Boron (B)