How do the properties of the elements change as you move across a period on a periodic table from left to right?
Group of answer choices

A)The elements become more metallic.

B)The elements become less reactive.

C)The elements have smaller atomic masses.

D)The elements become more nonmetallic.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.