Question

pure sodium metal (na) is very reactive. it is usually stored in oil to prevent it from reacting violently with water vapor or the air. based on the periodic table, which other metal is likely to be highly reactive? a. argon (ar) b. potassium (k) c. gold (au) d. aluminum (al)

Explanation:

Elements in the same group of the periodic - table have similar chemical properties. Sodium (Na) is in Group 1 (alkali metals). Potassium (K) is also in Group 1. Alkali metals are highly reactive. Argon is a noble gas and is very unreactive. Gold and aluminum are less reactive compared to alkali metals.

Answer:

B. potassium (K)