Question

The number of metalloids in the following elements are: Si, Mn, B, F, Cu, Ag, K, Sb, As, Na, Ge

• A. 4
• B. 5
• C. 6
• D. 7

Hint:

Metalloids are located along the zig-zag line in the periodic table and have mixed properties of metals and non-metals. They are typically semiconductors.

Answer 1

The Correct Option is A

Step 1: Understanding metalloids.
Metalloids are elements that have properties of both metals and non-metals. They are typically found along the zig-zag line on the periodic table, separating metals from non-metals. Step 2: Identifying the metalloids in the given list.
The elements in the list are:
Si (Silicon), Mn (Manganese), B (Boron), F (Fluorine), Cu (Copper), Ag (Silver), K (Potassium), Sb (Antimony), As (Arsenic), Na (Sodium), Ge (Germanium).
From this list, the following are metalloids:
Si (Silicon)
B (Boron)
Ge (Germanium)
As (Arsenic)
Step 3: Counting the number of metalloids.
The metalloids in this list are Silicon (Si), Boron (B), Germanium (Ge), and Arsenic (As). Therefore, there are 4 metalloids. Thus, the correct answer is 4.