The following are electronic configurations of five elements. A= 2,8,2 B= 2,8,6 C= 2,8,8 D= 2,8,7 E= 2,8,3 (a) Which element is unlikely to react with the others? (b) Which elements will react to form covalent compounds? (c) Which elements will react to form ionic solids? Give the common valency of the elements when they form ionic solids. Which of these bonds is the weakest: ionic bond; covalent bond; hydrogen bond?
