Question

which element is most likely to be shiny?
○ sulfur (s)
○ boron (b)
○ calcium (ca)
○ fluorine (f)

Explanation:

Metals have a shiny appearance (metallic luster). Calcium (Ca) is a metal. Sulfur (S) is a non - metal, boron (B) is a metalloid, and fluorine (F) is a non - metal. Non - metals and metalloids do not have the characteristic shiny appearance of metals.

Answer:

calcium (Ca)