Question

What determines the chemical properties of an element?

Answer 1

The number and arrangement of the electrons in an atom is what determines the chemical properties of an atom. Chemical properties of an atom, element, or compound can be observed when a chemical change occurs, and the electrons surrounding an atom can help form chemical bonds with other atoms.

Answer 2

What essentially determines the chemical properties of an element would be A. The number of and arrangement of the electrons in the atom.