Electronic Configuration of Elements
Here is the electronic configuration of the first 118 elements in the periodic table:

Hydrogen (H) - Helium (He)
- Hydrogen: 1s^1
- Helium: 1s^2

Lithium (Li) - Neon (Ne)
- Lithium: [He] 2s^1
- Beryllium: [He] 2s^2
- Boron: [He] 2s^2 2p^1
- Carbon: [He] 2s^2 2p^2
- Nitrogen: [He] 2s^2 2p^3
- Oxygen: [He] 2s^2 2p^4
- Fluorine: [He] 2s^2 2p^5
- Neon: [He] 2s^2 2p^6

Sodium (Na) - Argon (Ar)
- Sodium: [Ne] 3s^1
- Magnesium: [Ne] 3s^2
- Aluminum: [Ne] 3s^2 3p^1
- Silicon: [Ne] 3s^2 3p^2
- Phosphorus: [Ne] 3s^2 3p^3
- Sulfur: [Ne] 3s^2 3p^4
- Chlorine: [Ne] 3s^2 3p^5
- Argon: [Ne] 3s^2 3p^6
This pattern continues for the remaining elements up to Oganesson (Og), with each element adding electrons to the next available energy level and sublevel according to the Aufbau principle. The electronic configurations of the elements provide insight into their chemical properties and behavior.