Orbitals and electronic configurationEdexcel International A Level Chemistry: Mind map

Exam questions on Orbitals and electronic configuration

1. A student is learning to write the electronic configurations of atoms and ions of elements in the first four periods.
   State what is meant by the term orbital.2 marks
2. Iron (atomic number 26) is the most widely used transition metal. Iron(II) and iron(III) ions are found in haemoglobin and in rust.
   Describe how the six 3d electrons of an Fe²⁺ ion are arranged in the 3d orbitals, and explain why they are arranged in this way.2 marks
3. A transition metal course covers elements from scandium to zinc. The atomic numbers are: vanadium 23, manganese 25 and zinc 30.
   Write the full electronic configuration, using s, p, d notation, of (i) a vanadium atom, (ii) a V³⁺ ion and (iii) a Zn²⁺ ion.3 marks