Where are the metalloids located on the periodic table?

• A. Only in Group 18 (the noble gases) on the far right side
• B. Exclusively in the f-block (lanthanides and actinides) below the main table
• C. Along the zigzag (stair-step) line separating metals and nonmetals
• D. Only in the first column (Group 1 alkali metals) on the far left side

Answer: (C)

Verified step by step guidance

1. Understand that the periodic table is divided into metals, nonmetals, and metalloids based on their properties.
2. Recall that metalloids have properties intermediate between metals and nonmetals, so they are located between these two groups on the periodic table.
3. Identify the zigzag (stair-step) line on the periodic table, which separates metals on the left from nonmetals on the right.
4. Recognize that metalloids are found along this zigzag line, acting as a boundary between metals and nonmetals.
5. Conclude that metalloids are not exclusively in Group 18, the f-block, or Group 1, but rather along the zigzag line separating metals and nonmetals.