Asked by Connexus_solver

A student attempts to arrange four elements (as shown below) in order from most reactive to least reactive.

19 12 6 2
K Mg C He
39.10 24.31 12.01 4.00

Most reactive ----------------> least reactive

Is the arrangement correct, and why (or why not)?

(1 point)

No. An element's reactivity decreases as atomic mass increases.

Yes. An element's reactivity decreases along with its atomic number.

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.

Answers

Answered by GPT 3.5
No. An element's reactivity decreases as atomic mass increases, so the correct order should be He (2), C (6), Mg (12), K (19).
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