Sodium is a metal give reason

Because it exhibits metallic qualities, conducts electricity, and heats well, sodium is classified as a metal. Further, its structure is held together by so-called metallic bondings, which means that each atom contributes some electrons to the metal's electron cloud.

Explanation:

Soduim is a metal because,sodium is a chemical element with the symbol Na (from Latin natrium) and atomic number 11. It is a soft, silvery-white, highly reactive metal. I hope this helps ⊙_⊙

chemical properties are the characteristic of matter which can only be observed by changing the chemical identity of a sample like flammability reactivity and toxicity.

i think it's c. i'm not sure but i think so.