Question

what is the maximum number of electrons present in third main energy ​

Answer 1

Answer:

Thus, the third level holds a maximum of 18 electrons: 2 in the s orbital, 6 in the three p orbitals, and 10 in the five d orbitals

Answer 2

18 electrons

Each principal energy level above the second energy level contains one s-orbital, three p-orbital and five d-orbital. The maximum electrons present in a d-orbital is 10 electrons. So, the third principal energy level can hold maximum 18 electrons and contain one s-orbital, three p-orbital and five d-orbital.