Dairy Products. Different types of algae are found in common dairy products. For example, carrageenan is a form of algae that is in many products. Yogurt, sour cream, mayonnaise, cheese and whipped cream all are known for possessing this form of algae.
Like its fellows, krypton is a colourless, odourless, tasteless, noble gas that occurs in trace amounts in the atmosphere. Like the other noble gases, it too is useful in lighting and photography, and its high light output in plasmas allows it to play an important role in many high-powered lasers.
At normal temperatures, krypton and the other elements in Group 18 are extremely unreactive. The reason is that, with the exception of helium, these elements' outer electron shells are filled to capacity with 8 electrons. This satisfies the octet rule, in which a full electron shell means maximum stability.