The melting point and boiling points of elements in period 3 decrease across the period from left to right. Explain why there is a sharp increase in melting point and boiling point in the middle of the period and identify the element with such behaviour.

c8h10 is your answerr

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