Numerous forms of the periodic table have been devised from time to time. A modern version, which is most convenient and widely used is the long or extended form of periodic table. The horizontal rows are called periods. There are altogether seven periods. The first period consists of 2 elements. The subsequent periods consist of 8, 8, 18, 18 and 32 elements respectively. Elements having similar outer electronic configurations in their atoms are grouped in vertical columns. These are referred to as groups or families. According to the recommendation of IUPAC, groups are numbered 1 to 18 replacing the older notation of group 0,IA, IIA, ....VIIA, VIII, IB, ......VIIB
In Mendeleev's periodic table, silver belongs to IB group. The group to which silver belongs in long form of periodic table is

Options

A. first
B. eleventh
C. tenth
D. sixteenth

Answer

To determine the group to which silver (Ag) belongs in the long or extended form of the periodic table, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Element**:
- The chemical symbol for silver is Ag.

2. **Refer to Mendeleev's Periodic Table**:
- In Mendeleev's periodic table, silver is categorized under group IB.

3. **Understand the Modern Periodic Table**:
- The modern periodic table, developed by Moseley, organizes elements based on increasing atomic number and consists of 18 groups and 7 periods.

4. **Locate Silver in the Modern Periodic Table**:
- In the modern periodic table, silver (Ag) is found in the transition metals section.

5. **Determine the Group Number**:
- In the long form of the periodic table, silver belongs to group 11.

6. **Confirm the Period**:
- Silver is located in the 5th period of the periodic table.

7. **Final Answer**:
- Therefore, the group to which silver belongs in the long form of the periodic table is group 11.