Question

How does the aufbau principle, in connection with the periodic law, lead to the format of the periodic table?

Answer 1

The Aufbau principle leads to the format of the periodic table by arranging elements based on their electron configurations and the number of valence electrons they have.

Step-by-step explanation:

The Aufbau principle, in connection with the periodic law, leads to the format of the periodic table by arranging elements based on their electron configurations and the number of valence electrons they have. The periodic table is organized in a way that groups elements with similar properties in the same vertical columns, also known as groups. This arrangement follows the filling of subshells with electrons according to the Aufbau principle.

Answer 2

Afbau principle states that the electrons are filled in the orbital according to their energy level. Lower energy shells are first filled and then higher energy shell are filled.

The order of filling of orbitals are s-p-d-f.

So, elements with last electron in respective orbitals show similar properties. And this serves as the basis of format of periodic table.