Which phrase best describes a period on the periodic table? a. elements that are in the same group

b. elements that have the same number of electrons

c. a column of elements

d. a row of elements

(04.05 hc) analyze the given diagram of the carbon cycle below. part 1: which compound does c represent? part 2: name a process that could release this compound into the air. part 3: explain how the elements that form it are conserved during the carbon cycle. use complete sentences to explain your answer. justify how this compound was created from a recycling of carbon in the carbon cycle. use complete sentences to explain your answer.