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. boron (b) oxygen (o) zinc (zn) gallium (ga) fluorine (f) chlorine (cl) thallium (tl) aluminum (al)

Explanation:

First, identify Group 13 elements from the options: Boron (B), Aluminum (Al), Gallium (Ga), Thallium (Tl). Next, compare their atomic masses: Boron has an atomic mass of ~10.81 u, Aluminum ~26.98 u, Gallium ~69.72 u, Thallium ~204.38 u. Boron has the smallest atomic mass among Group 13 metals/metalloids.

Answer:

A. Boron (B)