Question

Write the corresponding electron configuration for the following pictorial representation.

Answer 1

Before the 4p orbit starts to fill, the element must have:

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰,

which is Zn.

Depending on the number of electrons in the 4p, the element might be Ga to Kr, inclusive