Sea Otters dive to the seafloor to obtain a variety of invertebrate animals. The most common prey of Sea Otters are sea urchins, mussels, abalone, clams, scallops, crabs, sea snails, chitons, octopus, and squid. An acute sense of touch, using paws, nose, and whiskers, is very important for finding prey in crevices or bottom sediments, and during dim light.
Who invented antimony? Antimony has been in use since the ancient Egyptian's used one its  minerals, stibnite (Sb2S3) as black eyeliner up to 5000 years ago.  Roman author Pliny described how heat â¦ ing this mineral formed what  he called lead. We now know that this was actually antimony.
The mass number represents the number of protons plus neutrons in the nucleus of an atom of the element. The number of protons determines the element, but the number of neutrons in the atom of any one element can vary. Each variation is an isotope. About 20 radioactive isotopes of antimony are also known.A radioactive isotope is one that breaks apart and gives off some form of radiation. Radioactive isotopes are produced when very small particles are fired at atoms. These particles stick in the atoms and make them radioactive.he mass number represents the number of protons plus neutrons in the nucleus of an atom of the element. The number of protons determines the element, but the number of neutrons in the atom of any one element can vary. Each variation is an isotope. About 20 radioactive isotopes of antimony are also known.