A. An atom has a mass number of 19 and an atomic number of 9. What element is it? What is its symbol? How many protons, neutrons, and electrons does it have?

Fluorine is the element in question, as its atomic number is 9 . You would name this particular isotope using the mass number. It would be called fluorine-19. The nuclear or isotopic notation would be 199F

Explanation:

Hope that what you meant

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them