What is the most likely oxidation state of aluminum

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

What is the lowest number energy level where a d sublevel is found