In figure A, the reactants have energy than the products. The enthalpy of the reaction is , indicating that heat is (released, absorbed) during the reaction. Reaction A is an reaction

It dont even matter because at the end of thre day we gone life like it ius s

B. a graduated substance

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts