Elements on the periodic table are arranged into horizontal rows called periods. which of the following is true of the elements in a period

i literally just read the book and studied it for months so i could you, but i need to know where these questions are coming from. they are too general.

which is the following what are you asking?

comfortable

explanation:

one type of the adjectives is predicate adjective. a predicate adjective is an adjective which follows a linking verb and modifies or refers back to the main subject of that linking verb.

it usually is used just before the noun it modies.

here in this example:

'penguins seem comfortable in the coolest habitats', comfortable is the predicate adjective which follows the linking verb 'seem' and modifies the noun.