Which of the following elements is classified as a metal?

• A. Ne
• B. Cl
• C. Na
• D. S

Answer: (C)

Verified step by step guidance

1. Recall the general classification of elements in the periodic table: metals, nonmetals, and metalloids.
2. Identify the elements given: Ne (Neon), Cl (Chlorine), Na (Sodium), and S (Sulfur).
3. Recognize that Neon (Ne) is a noble gas, which is a nonmetal and chemically inert.
4. Understand that Chlorine (Cl) and Sulfur (S) are nonmetals, commonly found on the right side of the periodic table.
5. Know that Sodium (Na) is an alkali metal, located in Group 1 of the periodic table, and is classified as a metal.