Atomic radius of Ag is similar to

Options

A. Cu
B. Hg
C. Au
D. Ni

Answer

To determine which element has an atomic radius similar to that of silver (Ag), we can follow these steps:

### Step 1: Identify the Position of Silver in the Periodic Table
Silver (Ag) is located in Group 11 of the periodic table and is part of the transition metals. It is positioned in the 4th period.

### Step 2: Understand the Concept of Atomic Radius
The atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons. Atomic radius tends to decrease across a period (from left to right) due to increased nuclear charge, and it increases down a group due to the addition of electron shells.

### Step 3: Identify Elements in the Same Group
Since silver is in Group 11, we can look for other elements in the same group. The elements in Group 11 are:
- Copper (Cu) - 3rd period
- Silver (Ag) - 4th period
- Gold (Au) - 5th period

### Step 4: Compare Atomic Radii
Given that silver is in the 4th period, we can compare its atomic radius with that of copper (3rd period) and gold (5th period). Since atomic radius tends to increase down a group, we can expect that gold (Au), being in the 5th period, will have a larger atomic radius than silver (Ag). However, the atomic radius of silver (Ag) is expected to be similar to that of gold (Au) due to the lanthanide and actinide contraction effects.

### Step 5: Conclusion
Based on the periodic trends and the positioning of these elements, we conclude that the atomic radius of silver (Ag) is similar to that of gold (Au).

### Final Answer
The atomic radius of Ag is similar to Au (Gold).

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