Question

how do electron configuration affect properties in trends

Answer 1

The electron configuration of an element dictates the element's properties in a chemical reaction. Elements' electron configurations vary regularly along the periodic table.

•
The Aufbau principle determines the electron configuration of an element. The principle states that the lowest-energy orbitals are filled first, followed successively by higher-energy orbitals.

•
Magnetism can result from unpaired electrons in a given ion of an element, depending on the spin states of the electrons.