A Rock is determined to be 1.426 billion years old. How much uranium-235 remains in the rock?

a electronegativity decreases beacuse the size of nucleus is bigger.

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