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.
The maximum American Opportunity Tax Credit amount is $2,500 per eligible student per year, and it is available for each of the first four years of a studentâs post-secondary education. The American Opportunity Tax Credit amount is not $2,500 across the board for each claimant, however. Broken down, the maximum credit amount is more accurately stated as being 100 percent of the first $2,000 of qualified tuition and related expenses, plus 25 percent of the next $2,000 of qualified tuition and related expenses.