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The ions are not particularly toxic; a 70 kg person contains on average 0.36 g of rubidium, and an increase in this value by 50 to 100 times did not show negative effects in test persons. [70] The biological half-life of rubidium in humans measures 31–46 days. [ 62 ]
The river water was contaminated with toxic metals including arsenic, copper, barium, cadmium, chromium, lead, mercury, nickel, and thallium. [2] Cleanup costs may exceed $1.2 billion. [3] A toxic heavy metal is a common but misleading term for a metal-like element noted for its potential toxicity. [4]
Toxic metals can bioaccumulate in the body and in the food chain. [5] Therefore, a common characteristic of toxic metals is the chronic nature of their toxicity. This is particularly notable with radioactive heavy metals such as radium , which imitates calcium to the point of being incorporated into human bone, although similar health ...
Highly toxic to humans in its elemental form. [11] iridium: 77: 1a: Due to its extreme rarity, iridium has no biological role. [11] The chloride is moderately toxic to humans. [11] iron: 26: 5: Essential to almost all living things, usually as a ligand in a protein; it is most familiar as an essential element in the protein hemoglobin. [11 ...
The lunar atmosphere contains mainly argon, helium and neon, along with potassium and rubidium and possibly other elements at lesser levels. It extends from the moon's surface to a height of about ...
[30] [31] Natural rubidium is similarly slightly radioactive, with 27.83% being the long-lived radioisotope rubidium-87. [ 10 ] : 74 Caesium-137 , with a half-life of 30.17 years, is one of the two principal medium-lived fission products , along with strontium-90 , which are responsible for most of the radioactivity of spent nuclear fuel after ...
Great Value's Cream Cheese won consistently high marks across all of our editors' tastings for its balance of sweetness, tartness, and saltiness.
Rubidium: Strontium: Yttrium: Zirconium: Niobium: ... Krypton is considered to be a non-toxic asphyxiant. ... causes narcosis in humans similar to breathing air at ...