Sodium atom has lower ionisation energy than chlorine atom

the answer is true. WELL, only if its a true or false question

b i think it’s a water wheel turning in a stream

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.