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 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. 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. Yes. An element’s reactivity decreases along with its atomic number.
No. An element's reactivity actually tends to increase as you move from left to right on the periodic table. So the correct order from most reactive to least reactive would be lithium, sodium, potassium, and rubidium.
