What is the atomic number of the element which belongs to fifth period and Group 16?

Options

A. 50
B. 34
C. 52
D. 53

Answer

To find the atomic number of the element that belongs to the fifth period and Group 16, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Group 16 Elements**:
Group 16 of the periodic table is known as the Oxygen family. The elements in this group include:
- Oxygen (O)
- Sulfur (S)
- Selenium (Se)
- Tellurium (Te)
- Polonium (Po)

2. **Determine the Period**:
The question specifies that we are looking for an element in the fifth period. The periods in the periodic table indicate the rows, with the first period being the first row, the second period the second row, and so on. The fifth period includes elements from atomic numbers 37 (Rubidium) to 54 (Xenon).

3. **Locate the Element in Group 16 and Fifth Period**:
From the list of Group 16 elements, we see that:
- Oxygen is in the 2nd period.
- Sulfur is in the 3rd period.
- Selenium is in the 4th period.
- Tellurium is in the 5th period.
- Polonium is in the 6th period.

Therefore, the element in the fifth period and Group 16 is Tellurium (Te).

4. **Find the Atomic Number of Tellurium**:
The atomic number of Tellurium (Te) is 52.

### Final Answer:
The atomic number of the element which belongs to the fifth period and Group 16 is **52**.

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