Question

i am the least massive of all the alkaline earth metals. who am i? view periodic table tap on an option below to select or deselect an answer. aluminum (al) francium (fr) radium (ra) fluorine (f) lithium (li) hydrogen (h) scandium (sc) beryllium (be)

Explanation:

Alkaline earth metals are Group 2 elements on the periodic table. Among the options, only Beryllium (Be) is a Group 2 element, and it is the lightest (least massive) member of this group. The other options belong to different groups: Aluminum (Group 13), Francium (Group 1), Radium (Group 2 but heavier than Be), Fluorine (Group 17), Lithium (Group 1), Hydrogen (Group 1), Scandium (Group 3).

Answer:

Beryllium (Be)