For the next six to eight weeks -- or until you're free of pain -- avoid the activity that caused the stress fracture. If you exercise again too soon, you could delay the healing process. You could even cause damage that may never heal properly. When you are ready to return to the activity, do it slowly. If you rush back in, you could re-injure yourself. Very severe stress fractures that won't heal on their own may require surgery.
Best Answer: Krypton is a nonmetal belonging to group 8. All the elements in this group are essentially non reactive and are called the noble gases.est Answer: Krypton is a nonmetal belonging to group 8. All the elements in this group are essentially non reactive and are called the noble gases.
Scottish chemist William Ramsay and his assistant English chemist Morris Travers discovered krypton in 1898 in London. Ramsay had previously discovered helium and argon. He was aware that more new elements must lie in the same group of the periodic table.rypton is considered to be non-toxic. Characteristics: Krypton is a colorless, odorless, inert gas. Although it is extremely unreactive krypton can react with the very reactive gas fluorine. A few compounds of krypton have been prepared, including krypton (II) fluoride and krypton clathrates.