Question

A student attempts to arrange four elements (as shown below) in order from most reactive to least reactive. Is the arrangement correct, and why (or why not)? (1 point) Responses No. An element’s reactivity decreases from right to left on the periodic table. No. An element’s reactivity decreases from right to left on the periodic table. No. An element’s reactivity decreases as atomic mass increases. No. An element’s reactivity decreases as atomic mass increases. Yes. An element’s reactivity decreases from left to right on the periodic table. Yes. An element’s reactivity decreases from left to right on the periodic table. Yes. An element’s reactivity decreases along with its atomic number.

Answer 1

No. An element's reactivity actually decreases from left to right on the periodic table, not from right to left. So, the correct arrangement from most reactive to least reactive would be Element B, Element A, Element C, Element D.