The atomic mass number (or isotope number) = number of protons + neutrons combined so in the case of calcium 40 = 20 + number of neutrons. This makes the number of neutrons 20. Added: Other isotopes (about 3%) of (natural occurring) Calcium are with 22, 23, 24, 26 or 28 neutrons.
Off the Atlantic coast of the United States tiger sharks are found from Cape Cod, Massachusetts, to the Gulf of Mexico and Caribbean Sea.Off the Pacific coast tiger sharks are found from southern California southward. In the western central Pacific, tiger sharks are found in the Hawaiian, Solomon, and Marshall Islands.istribution: Off the Atlantic coast of the United States tiger sharks are found from Cape Cod, Massachusetts, to the Gulf of Mexico and Caribbean Sea. Off the Pacific coast tiger sharks are found from southern California southward.
Caribbean Reef Shark: This is the most commonly seen shark in the Caribbean. It is usually 6.5-8 feet, or 2-2.5 meters, long. Look for dusky-colored fins that do not have any prominent markings, as well as a coloration that is dark grey or grey-brown on the top of the body and white or white-yellow underneath.iger Sharks: Another large shark, capable of growing to a length of over 16 feet, or 5 meters, the Tiger Shark can be found in the Caribbean and other warm waters around the world.