Using the Aufbau principle , write the electronic configuration for the following atoms : boron `(Z = 5)`, neon `(Z = 10)`, aluminum `(Z = 13)`, chlorine `(Z = 17)`, calcium `(Z = 20)` and rubidium `(Z = 37)`.

Explanation

To write the electronic configurations for the elements given using the Aufbau principle, we will follow the order of filling the atomic orbitals based on their energy levels. The order of filling is determined by the n + l rule, where n is the principal quantum number and l is the azimuthal quantum number.

### Step-by-Step Solution:

1. **Boron (Z = 5)**:
- The total number of electrons is 5.
- Following the Aufbau principle, we fill the orbitals in the order of increasing energy:
- 1s: 2 electrons → 1s²
...