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Who was Paul Emile?
Paul-Émile Lecoq de Boisbaudran, (born April 18, 1838, Cognac, Fr. —died May 28, 1912, Paris), French chemist who developed improved spectroscopic techniques for chemical analysis and discovered the elements gallium (1875), samarium (1880), and dysprosium (1886).
What did cardinal Leger do?
He also opened a good number of schools, orphanages, hospitals and clinics. Other organizations were later formed. Today, they are grouped together under the title Jules and Paul-Émile Léger Foundation. His Eminence Cardinal Paul-Émile Léger was honoured on a number of occasions for his outstanding work.
What was Paul Emile cardinal Leger committed to?
On November 9, 1967 Léger announced his resignation as archbishop of Montreal with the intent to devote himself to working among the African lepers.
How did Paul Émile Lecoq de Boisbaudran find gallium?
The French chemist Paul-Emile Lecoq de Boisbaudran discovered gallium in sphalerite (a zinc-sulfide mineral) in 1875 using spectroscopy. Mendeleev thought that the missing element (gallium) would be very much like aluminum in its chemical properties, and he was right.
How did Lecoq discover gallium?
A significant achievement of Lecoq de Boisbaudran was his discovery of the element gallium in 1875. Beginning in 1874, Lecoq de Boisbaudran investigated a sample of 52 kg of the mineral ore sphalerite obtained from the Pierrefitte mine in the Pyrenees. From it, he extracted several milligrams of gallium chloride.
Who named gallium?
Lecoq de Boisbaudran
Lecoq de Boisbaudran named the element after France (‘Gaul’ in Latin) and also himself, since Lecoq, which means ‘the rooster’ translates to ‘Gallus’ in Latin. A silvery metallic rooster is shown on a background of an antique map of France. Gallium is a soft, silvery-white metal, similar to aluminium.
How did Paul Emile find gallium?
Gallium–A smart metal The French chemist Paul-Emile Lecoq de Boisbaudran discovered gallium in sphalerite (a zinc-sulfide mineral) in 1875 using spectroscopy. He named the element “gallia” after his native land of France (formerly Gaul; in Latin, Gallia).
How did Paul Émile Lecoq de Boisbaudran discover dysprosium?
De Boisbaudran used spectroscopy to analyse the spectra of 35 elements. He did this by using a Bunsen burner – and sometimes an electric spark – to encourage luminescence. Through this method, he discovered several new elements. These included samarium, dysprosium, europium, and most significantly, gallium.
Who first discovered gallium?
Paul-Émile Lecoq de Boisbaudran
Gallium/Discoverers
Gallium–A smart metal Gallium is a soft, silvery metallic element with an atomic number of 31 and the chemical symbol Ga. The French chemist Paul-Emile Lecoq de Boisbaudran discovered gallium in sphalerite (a zinc-sulfide mineral) in 1875 using spectroscopy.
How did Paul Émile Lecoq de Boisbaudran discovered gallium?
Where did Paul Émile Lecoq de Boisbaudran discover gallium?
Who and when was gallium discovered?
Gallium was discovered in Paris by Paul-Émile Lecoq de Boisbaudran in 1875. He observed a new violet line in the atomic spectrum of some zinc he had extracted from a sample of zinc blende ore (ZnS) from the Pyrenees.
Where did Paul Emile Leger live as a child?
The son of a general merchant, Paul-Émile Léger spent his entire childhood in Saint-Anicet, a small bilingual village on Lac Saint-François, southwest of Montreal, where his parents had settled to engage in business.
Why did Paul Emile Leger resign as Archbishop of Montreal?
On November 9, 1967 Léger announced his resignation as archbishop of Montreal with the intent to devote himself to working among the African lepers. This decision caused an uproar in the media surprised the public. Léger was enthralled with Africa.
When did Paul Emile Leger wear the Red Hat?
On January 12, 1953 he was given the honor of wearing the red hat, the first in Montreal. In this capacity he would perform the duties of the papal legate in Lourdes, France (1954), at St Joseph’s Oratory in Montreal (1955), and in Sainte-Anne-de-Beaupré (1958).