The group to which elements belong in the periodic table is determined by the number?

Derek644222

2 years ago

The group to which elements belong in the periodic table is primarily determined by the number of valence electrons. Valence electrons are the electrons in the outermost energy level (valence shell) of an atom. Elements in the same group share similar chemical properties because they have the same number of valence electrons. This commonality in valence electrons influences an element's reactivity and the types of chemical bonds it can form. so option D is correct