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Darleane C. Hoffman
Darleane Christian Hoffman (born November 8, 1926) is an American nuclear chemist who was among the researchers who confirmed the existence of Seaborgium, element 106. She is a faculty senior scientist in the Nuclear Science Division of Lawrence Berkeley National Laboratory and a professor in the graduate school at UC Berkeley. In acknowledgment of her many achievements, Discover Magazine recognized her in 2002 as one of the 50 most important women in science. Early life and education She was born as Darleane Christian on November 8, 1926 at home in the small town of Terril, Iowa, and is the daughter of Carl B. and Elverna Clute Christian. Her father was a mathematics teacher and superintendent of schools; her mother wrote and directed plays. When she was a freshman in college at Iowa State College (now Iowa State University), she took a required chemistry course taught by Nellie May Naylor, and decided to pursue further study in that field. She received her B. S. (1948) and Ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terril, Iowa
Terril is a city in Dickinson County, Iowa, United States. The population was 334 at the time of the 2020 census. History Terril (formerly spelled Terrill) was platted in 1895. Geography According to the United States Census Bureau, the city has a total area of , all land. Demographics 2010 census As of the census of 2010, there were 367 people, 164 households, and 106 families living in the city. The population density was . There were 178 housing units at an average density of . The racial makeup of the city was 94.8% White, 0.5% African American, 1.1% Asian, 1.6% from other races, and 1.9% from two or more races. Hispanic or Latino of any race were 2.2% of the population. There were 164 households, of which 26.2% had children under the age of 18 living with them, 48.8% were married couples living together, 7.9% had a female householder with no husband present, 7.9% had a male householder with no wife present, and 35.4% were non-families. 30.5% of all households were made u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seaborgium
Seaborgium is a synthetic chemical element with the symbol Sg and atomic number 106. It is named after the American nuclear chemist Glenn T. Seaborg. As a synthetic element, it can be created in a laboratory but is not found in nature. It is also radioactive; the most stable known isotope, 269Sg, has a half-life of approximately 14 minutes. In the periodic table of the elements, it is a d-block transactinide element. It is a member of the 7th period and belongs to the group 6 elements as the fourth member of the 6d series of transition metals. Chemistry experiments have confirmed that seaborgium behaves as the heavier homologue to tungsten in group 6. The chemical properties of seaborgium are characterized only partly, but they compare well with the chemistry of the other group 6 elements. In 1974, a few atoms of seaborgium were produced in laboratories in the Soviet Union and in the United States. The priority of the discovery and therefore the naming of the element was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Medal Of Science Laureates
National may refer to: Common uses * Nation or country ** Nationality – a ''national'' is a person who is subject to a nation, regardless of whether the person has full rights as a citizen Places in the United States * National, Maryland, census-designated place * National, Nevada, ghost town * National, Utah, ghost town * National, West Virginia, unincorporated community Commerce * National (brand), a brand name of electronic goods from Panasonic * National Benzole (or simply known as National), former petrol station chain in the UK, merged with BP * National Car Rental, an American rental car company * National Energy Systems, a former name of Eco Marine Power * National Entertainment Commission, a former name of the Media Rating Council * National Motor Vehicle Company, Indianapolis, Indiana, USA 1900-1924 * National Supermarkets, a defunct American grocery store chain * National String Instrument Corporation, a guitar company formed to manufacture the first resonator g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
21st-century American Chemists
The 1st century was the century spanning AD 1 ( I) through AD 100 ( C) according to the Julian calendar. It is often written as the or to distinguish it from the 1st century BC (or BCE) which preceded it. The 1st century is considered part of the Classical era, epoch, or historical period. The 1st century also saw the appearance of Christianity. During this period, Europe, North Africa and the Near East fell under increasing domination by the Roman Empire, which continued expanding, most notably conquering Britain under the emperor Claudius ( AD 43). The reforms introduced by Augustus during his long reign stabilized the empire after the turmoil of the previous century's civil wars. Later in the century the Julio-Claudian dynasty, which had been founded by Augustus, came to an end with the suicide of Nero in AD 68. There followed the famous Year of Four Emperors, a brief period of civil war and instability, which was finally brought to an end by Vespasian, ninth Roman em ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
