Look at page 3 to answer the following questions. 5. Complete the sentences to describe the trend in the properties as
you move across a period.
The atomic number
as you move from left to right acros
a period.
The radius of an atom
as you move from left to right
across a period.
llowing questions

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.