In yesterday’s science lesson, we were tasked with drawing the first 20 elements of the periodic table and the electron configuration.
- Hydrogen (H, 1): 1
- Helium (He, 2): 2
- Lithium (Li, 3): 2, 1
- Beryllium (Be, 4): 2, 2
- Boron (B, 5): 2, 3
- Carbon (C, 6): 2, 4
- Nitrogen (N, 7): 2, 5
- Oxygen (O, 8): 2, 6
- Fluorine (F, 9): 2, 7
- Neon (Ne, 10): 2, 8
- Sodium (Na, 11): 2, 8, 1
- Magnesium (Mg, 12): 2, 8, 2
- Aluminium (Al, 13): 2, 8, 3
- Silicon (Si, 14): 2, 8, 4
- Phosphorus (P, 15): 2, 8, 5
- Sulfur (S, 16): 2, 8, 6
- Chlorine (Cl, 17): 2, 8, 7
- Argon (Ar, 18): 2, 8, 8
- Potassium (K, 19): 2, 8, 8, 1
- Calcium (Ca, 20): 2, 8, 8,