The element with atomic number 50 is a member of

Options

A. s-block
B. p-block
C. d-block
D. f-block

Explanation

To determine the block of the periodic table that the element with atomic number 50 belongs to, we can follow these steps:

### Step 1: Identify the Element
The element with atomic number 50 is Tin (Sn).

### Step 2: Determine the Electronic Configuration
To find the electronic configuration of Tin, we start from the first element and fill the orbitals according to the Aufbau principle. The electronic configuration for Tin is:
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p².

### Step 3: Write the Shortened Electronic Configuration
To simplify the electronic configuration, we can use the nearest noble gas, which is Krypton (Kr). The shortened electronic configuration for Tin is:
[Kr] 5s² 4d¹⁰ 5p².

### Step 4: Identify the Outermost Orbital
In the shortened electronic configuration, the outermost orbital is the 5p subshell.

### Step 5: Determine the Block of the Element
Elements are categorized into blocks based on their outermost electrons:
- S-block: Last electron enters an s orbital.
- P-block: Last electron enters a p orbital.
- D-block: Last electron enters a d orbital.
- F-block: Last electron enters an f orbital.

Since the last electron of Tin enters the p orbital, it belongs to the P-block.

### Step 6: Conclusion
Thus, the element with atomic number 50 (Tin) is a member of the P-block of the periodic table.

### Final Answer
The element with atomic number 50 is a member of the P-block.

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