Which one is most electropositive and electronegative (NEED EXPLAINATION) 10 points?
Electronegativity of an atom is the measure of attraction its nucleus exerts on a pair of shared electrons. In English, it simply means how well the atom does when involved in a tug-of-war with another atom over a pair of electrons. The strength of attraction that an atom has for its valence electrons depends partly on the distance between the nucleus (positively charged) and the valence electrons (negatively charged), and partly on the number of valence electrons. 1) Both elements Q and P have the same number of valence electrons (7), but Q has two shells, while P has three shells. Consequently, Q’s valence electrons are closer to its nucleus than P’s valence electrons. We can assume that Q has a greater hold on its valence electrons than P. Hence, Q would be more electronegative, and P more electropositive of the two. 2) Both X and Y have the same number of valence electrons (1), but X has three shells, while Y has four shells. We can assume that X has a greater hold on its valence e
