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Polonium is a radioactive element that exists in two metallic allotropes. The alpha form is the only known example of a simple cubic crystal structure in a single atom basis at STP (space group Pm 3 m, no. 221). The unit cell has an edge length of 335.2 picometers; the beta form is rhombohedral.
The decay chain of uranium-238, known as the uranium series or radium series, of which polonium-210 is a member Schematic of the final steps of the s-process.The red path represents the sequence of neutron captures; blue and cyan arrows represent beta decay, and the green arrow represents the alpha decay of 210 Po.
polonium: 84: 1b: Has no known biological role, and due to its short half-life, is nearly nonexistent outside of research facilities. [11] Both highly toxic and radioactive. potassium: 19: 5a: Essential for almost all living things, except perhaps some prokaryotes; performs numerous functions, most of which are related to the transport of ...
Polonium poisoning can cause nausea, vomiting, anorexia, and lymphopenia. It can also damage hair follicles and white blood cells. [2] [74] Polonium-210 is only dangerous if ingested or inhaled because its alpha particle emissions cannot penetrate human skin. [65] Polonium-209 is also toxic, and can cause leukemia. [75]
The more remote the trench is from humans and the deeper the trench is the better the degree of protection which will be afforded to the human population. In livestock farming, an important countermeasure against 137 Cs is to feed to animals a little prussian blue. This iron potassium cyanide compound acts as an ion-exchanger. The cyanide is so ...
People are ingesting borax. Also known by its chemical name sodium borate decahydrate, borax is a salt typically used to kill ants and boost laundry detergent, among other household cleaning needs ...
Metal toxicity or metal poisoning is the toxic effect of certain metals in certain forms and doses on life.Some metals are toxic when they form poisonous soluble compounds. . Certain metals have no biological role, i.e. are not essential minerals, or are toxic when in a certain for
Another powerful animal tranquilizer has made its way into street drugs, added to illicit fentanyl and other opioids to prolong a user’s high. The drug, called medetomidine, is linked to a ...