Question
Write down the electronic configuration of elements from atomic number 21 to atomic number 30. Also name the elements.
Solution
| Element | Atomic number (Z) | Electronic Configuration |
| Scandium (Sc) | 21 | [Ar]184s23d1 |
| Titanium (Ti) | 22 | [Ar]18 4s23d2 |
| Vanadium(V) | 23 | [Ar]18 4s23d3 |
| Chromium(Cr) | 24 | [Ar]18 4s23d5 |
| Manganese(Mn) | 25 | [Ar]18 4s23d5 |
| Iron (Fe) | 26 | [Ar]18 4s23d6 |
| Cobalt (Co) | 27 | [Ar]18 4s23d7 |
| Nickel (Ni) | 28 | [Ar]18 4s23d8 |
| Copper (Cu) | 29 | [Ar]18 4s13d10 |
| Zinc (Zn) | 30 | [Ar]184s23d10 |
