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This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium.
[j] The total amount of astatine in the Earth's crust (quoted mass 2.36 × 10 25 grams) [108] is estimated by some to be less than one gram at any given time. [8] Other sources estimate the amount of ephemeral astatine, present on earth at any given moment, to be up to one ounce [ 109 ] (about 28 grams).
The tables below include tabular lists for selected basic foods, compiled from United States Dept. of Agriculture sources.Included for each food is its weight in grams, its calories, and (also in grams,) the amount of protein, carbohydrates, dietary fiber, fat, and saturated fat. [1]
Food Saturated Mono-unsaturated Poly-unsaturated As weight percent (%) of total fat; Cooking oils; Algal oil [1]: 4: 92: 4 Canola [2]: 8: 64: 28 Coconut oil: 87: 13: 0 Corn oil
All this can vary across the values (data rows). So depending on the row and the specific value, additional formattings may be added by the template (e.g., a newline <br/>) Central data values. Some data, like standard atomic weight, are read from a central list. This way, enwiki has the same values everywhere.
Astatine is known to react with its lighter homologs iodine, bromine, and chlorine in the vapor state; these reactions produce diatomic interhalogen compounds with formulas AtI, AtBr, and AtCl. [4] The first two compounds may also be produced in water – astatine reacts with iodine/ iodide solution to form AtI, whereas AtBr requires (aside ...
This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds.
These values exceed those of astatine and the lighter halogens, following periodic trends. A later paper predicts the boiling point of tennessine to be 345 °C [114] (that of astatine is estimated as 309 °C, [115] 337 °C, [116] or 370 °C, [117] although experimental values of 230 °C [118] and 411 °C [112] have been reported).