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Radon is a colorless, odorless, and tasteless [14] gas and therefore is not detectable by human senses alone. At standard temperature and pressure, it forms a monatomic gas with a density of 9.73 kg/m 3, about 8 times the density of the Earth's atmosphere at sea level, 1.217 kg/m 3. [15]
Noble gas is translated from the German noun Edelgas, first used in 1900 by Hugo Erdmann [5] to indicate their extremely low level of reactivity. The name makes an analogy to the term "noble metals", which also have low reactivity. The noble gases have also been referred to as inert gases, but this label is deprecated as many noble gas ...
Argon. face-centered cubic (fcc) (cF4) Argon is a chemical element; it has symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. [9] Argon is the third most abundant gas in Earth's atmosphere, at 0.934% (9340 ppmv). It is more than twice as abundant as water vapor (which averages about 4000 ppmv, but varies ...
Methane (US: / ˈmɛθeɪn / METH-ayn, UK: / ˈmiːθeɪn / MEE-thayn) is a chemical compound with the chemical formula CH4 (one carbon atom bonded to four hydrogen atoms). It is a group-14 hydride, the simplest alkane, and the main constituent of natural gas.
Ethane (US: / ˈɛθeɪn / ETH-ayn, UK: / ˈiː -/ EE-) is a naturally occurring organic chemical compound with chemical formula C. 2H. 6. At standard temperature and pressure, ethane is a colorless, odorless gas. Like many hydrocarbons, ethane is isolated on an industrial scale from natural gas and as a petrochemical by-product of petroleum ...
The health effects of radon are harmful, and include an increased chance of lung cancer. Radon is a radioactive, colorless, odorless, tasteless noble gas, which has been studied by a number of scientific and medical bodies for its effects on health. A naturally-occurring gas formed as a decay product of radium, radon is one of the densest ...
Colorless, odorless gas spewing from the tanker at State Route 128 and U.S. Route 50 was reported to first responders shortly after 1 p.m., Chief Mike Siefke of the Little Miami Joint Fire and ...
Neon. face-centered cubic (fcc) (cF4) Neon is a chemical element; it has the symbol Ne and atomic number 10. It is the second noble gas in the periodic table. [13] Neon is a colorless, odorless, inert monatomic gas under standard conditions, with approximately two-thirds the density of air. Neon was discovered in 1898 alongside krypton and ...