I need to make a menu for school that contains food items that contain algae. I have food like sushi, yogurt and ice cream. There&#39;s also mac and cheese, but I don&#39;t know how that would make a good meal with the above. If you have any food items or recipe ideas, that would help greatly.
Calcium is classified chemically as one of the alkaline earth elements (that is, in Group 2 of the periodic table. The metal is rather reactive. It readily forms a white coating of calcium nitride (Ca3N2) in air. It reacts with water and the metal burns with a yellow-red flame, forming largely the nitride.
Calcium is a chemical element. Its symbol on the periodic table is Ca. Its atomic number is 20. It has 20 protons and 20 electrons. The most common isotopes are Ca-40 and Ca-44. Its mass number is about 40.08. Calcium is very important in the human body, for making bones and for other purposes.