How many g subshells will be required in case element Uuo is discovered :-

Options

A. 1
B. 2
C. 3
D. None

Answer

To determine how many g subshells will be required for the element Ununoctium (Uuo), which has an atomic number of 110, we can follow these steps:

### Step 1: Identify the Atomic Number
The atomic number of Ununoctium (Uuo) is 110. This means it has 110 electrons.

### Step 2: Write the Electronic Configuration
We will write the electronic configuration step by step, filling the subshells according to the Aufbau principle:

1. **1s**: 2 electrons (1s²)
2. **2s**: 2 electrons (2s²)
3. **2p**: 6 electrons (2p⁶)
4. **3s**: 2 electrons (3s²)
5. **3p**: 6 electrons (3p⁶)
6. **4s**: 2 electrons (4s²)
7. **3d**: 10 electrons (3d¹⁰)
8. **4p**: 6 electrons (4p⁶)
9. **5s**: 2 electrons (5s²)
10. **4d**: 10 electrons (4d¹⁰)
11. **5p**: 6 electrons (5p⁶)
12. **6s**: 2 electrons (6s²)
13. **4f**: 14 electrons (4f¹⁴)
14. **5d**: 10 electrons (5d¹⁰)
15. **6p**: 6 electrons (6p⁶)
16. **7s**: 2 electrons (7s²)
17. **5f**: 14 electrons (5f¹⁴)
18. **6d**: 10 electrons (6d¹⁰)
19. **7p**: 6 electrons (7p⁶)
20. **7d**: 10 electrons (7d¹⁰)
21. **7f**: 14 electrons (7f¹⁴)
22. **7g**: 18 electrons (7g¹⁸)

### Step 3: Count the Electrons
Now, we need to count how many electrons we have filled so far:

- 1s² + 2s² + 2p⁶ + 3s² + 3p⁶ + 4s² + 3d¹⁰ + 4p⁶ + 5s² + 4d¹⁰ + 5p⁶ + 6s² + 4f¹⁴ + 5d¹⁰ + 6p⁶ + 7s² + 5f¹⁴ + 6d¹⁰ + 7p⁶ = 88 electrons.

### Step 4: Determine Remaining Electrons
Now, we subtract the number of electrons filled from the atomic number:

110 (total electrons) - 88 (filled electrons) = 22 electrons remaining.

### Step 5: Filling the Remaining Electrons
Next, we fill the remaining electrons:
- 5f can hold 14 electrons, so we fill 14 electrons in 5f.
- Now we have 22 - 14 = 8 electrons left.
- Next, we fill 6d with 8 electrons (6d⁸).

### Step 6: Determine the Presence of g Subshells
In the electronic configuration of Ununoctium (Uuo), we see that we have filled up to 6d and have not filled any g subshells. The g subshells start from the 7th period, and since we have not reached that level in our configuration, we conclude that:

**There are no g subshells required for Ununoctium (Uuo).**

### Final Answer
**None.**

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