Question

Какой металл не относится к щелочным? 1)Na 2)Ca 3)K 4)Fr

Answer 1

Ca щелочно-земельный металл

Answer 2

Answer:

The metal that does not belong to the alkali metals is *Ca (Calcium)*.

Explanation:

Calcium (Ca) is not an alkali metal. Alkali metals include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

Additional Information:

- Alkali metals are located in Group 1 of the periodic table and are highly reactive. - Calcium is an alkaline earth metal, which is located in Group 2 of the periodic table