Correct answer
A. 18
Explanation
18 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Elements having high I.P values are____________________?
When catalysts and reactants are in more than one phase it is________________?
Bond will beionic when E.N difference of bonded atom is ____________________?
The halogen which reacts spontaneously with gold (Au) to form Au+3 is ________________?
The amount of Zinc (at. Wt=65) necessary to produce 224 ml of H2 by the reaction with an acid will be______?
The element used for the formation of alloys is__________?