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Nitrogen is a chemical element; it has symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System.
2000 – CERN announced quark-gluon plasma, a new phase of matter. [28] 2023 – Physicists from US and China discovered a new state of matter called the chiral bose-liquid state [29] 2024 – Harvard researchers working with Quantinuum announced a new phase of matter non-Abelian topological order [30]
The two discovered a new element in a molybdenum sample that was used in a cyclotron, the first element to be discovered by synthesis. It had been predicted by Mendeleev in 1871 as eka-manganese. [171] [172] [173] In 1952, Paul W. Merrill found its spectral lines in S-type red giants. [174]
He was, as a consequence, one of the first scientists to investigate what is now called a plasma and identified it as the fourth state of matter in 1879. [21] He also devised one of the first instruments for studying nuclear radioactivity, the spinthariscope. [3] [22] [23] [24]
Rutherford discovered nitrogen by the isolation of the particle in 1772. [ 12 ] [ 13 ] When Joseph Black was studying the properties of carbon dioxide , he found that a candle would not burn in it. Black turned this problem over to his student at the time, Rutherford.
The majority r uling from the 11th U.S. Circuit Court of Appeals concurs with another decision this month by a federal judge in Alabama that sided with the state Corrections Department in its ...
Solid nitrogen is a number of solid forms of the element nitrogen, first observed in 1884. Solid nitrogen is mainly the subject of academic research, but low-temperature, low-pressure solid nitrogen is a substantial component of bodies in the outer Solar System and high-temperature, high-pressure solid nitrogen is a powerful explosive, with ...
An Alabama death row inmate filed a lawsuit Thursday that challenges the constitutionality of nitrogen gas executions, arguing that the first person in the nation put to death by that method shook ...