Question

Which symbol represents the element that is least reactive with other elements?

A) Li
B) Fr
C) Co
D) As
E) Rn

Answer 1

Rubidium (Rb) is the element that is least reactive with other elements.

Step-by-step explanation:

The element that is least reactive with other elements is Rb (rubidium). Rubidium is located at the bottom left of the rectangular section in the two far-left columns of the periodic table, known as the alkali metals. From the given options, Fr (francium) would be the most reactive element.