If Aufbau rule is not followed, what are the blocks of the following elements?
Ga(31)

Explanation

To determine the block of the element Gallium (Ga) with atomic number 31 when the Aufbau principle is not followed, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Aufbau Principle**: The Aufbau principle states that electrons fill atomic orbitals in order of increasing energy levels, starting from the lowest energy level to the highest.

2. **Determine the Electron Configuration of Gallium (Ga)**: The atomic number of Gallium is 31, which means it has 31 electrons. The typical electron configuration following the Aufbau principle would be:
- 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p¹
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