Answer: The electronic configuration and valency of 1 to 30 elements are as follows: –
Element | Valency | Electronic Configuration |
Hydrogen (H) | 1 | 1 |
Helium (He) | 0 | 2 |
Lithium (Le) | 1 | 2, 1 |
Beryllium (Be) | 2 | 2, 2 |
Boron (B) | 3 | 2, 3 |
Carbon (C) | 4 | 2, 4 |
Nitrogen (N) | 3 | 2, 5 |
Oxygen (O) | 2 | 2, 6 |
Fluorine (F) | 1 | 2, 7 |
Neon (Ne) | 0 | 2, 8 |
Sodium (Na) | 1 | 2, 8, 1 |
Magnesium (Mg) | 2 | 2, 8, 2 |
Aluminium (Al) | 3 | 2, 8, 3 |
Silicon (Si) | 4 | 2, 8, 4 |
Phosphorus (P) | 5, 3 | 2, 8, 5 |
Sulphur (S) | 2 | 2, 8, 6 |
Chlorine (Cl) | 1 | 2, 8, 7 |
Argon (Ar) | 0 | 2, 8, 8 |
Potassium (K) | 1 | 2, 8, 8, 1 |
Calcium (Ca) | 2 | 2, 8, 8, 2 |
Scandium (Sc) | 3 | 2, 8, 9, 2 |
Titanium (Ti) | 4 | 2, 8, 10, 2 |
Vanadium (V) | 5, 4 | 2, 8, 11, 2 |
Chromium (Cr) | 2 | 2, 8, 13, 1 |
Manganese (Mn) | 7, 4, 2 | 2, 8, 13, 2 |
Iron (Fe) | 2, 3 | 2, 8, 14, 2 |
Cobalt (Co) | 3, 2 | 2, 8, 15, 2 |
Nickel (Ni) | 2 | 2, 8, 16, 2 |
Copper (Cu) | 2, 1 | 2, 8, 18, 1 |
Zinc (Zn) | 2 | 2, 8, 18, 2 |