Question

Explain why alkali metals were not purified until the early 19th century.

Answer 1

in my opinion i belive that alkali metals are the MOST reactive metals in periodic table so they're never found unbonded or left out from nature because they are the most common metals.when they are in air they quickly turn black

they were FOUND in 19th centuary by sir humphry davy.

hope it helped!!! and plz mark branliest if the answer helped u!!