Question

which of the following is an element?
A. magnesium oxide
B. potassium C. NaOH D. dry ice

Answer 1

potassium is an element...

hope it helps

Answer 2

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B.Potassium

From given options,Potassium is element.

$\color{pink}{\bf{❣Hope \: it \: helps \: you.....}}$