By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. At standardized conditions for temperature and pressure, two atoms of the element bind to form dioxygen, a diatomic gas that is colorless, odorless, and tasteless, with the formula O 2.y mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. At standardized conditions for temperature and pressure, two atoms of the element bind to form dioxygen, a diatomic gas that is colorless, odorless, and tasteless, with the formula O 2.
American Opportunity Tax Credit. Students may claim this credit if you are over age 24 as long as you meet the other requirements, e.g. are not claimed as a dependent on someone else return, are attending a degree program half-time or more, and have not already completed four years of college.
You can only take this credit for a student for four years. You may qualify to take the American Opportunity Credit regardless of the amount of tax you owe. Up to $1,000 of this credit is refundable. For example, say you had no income tax withheld and you owe no taxes. You could still get up to $1,000 back for the American Opportunity Credit if you meet the requirements.