Study the model. The model shows a sodium chloride compound. What kind of substance is shown here? Select one: An atom. A molecule. An element. An extended structure.

an element

Explanation:

it said compound and a compound is element.

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.