Search results for "List of elements by atomic mass" - New World Encyclopedia
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- The periodic table of the chemical elements is a tabular display of ... :Main article: History of the periodic table The original table was ...13 KB (1,942 words) - 00:40, 24 November 2022
- The development of the periodic table of the elements parallels the ... eighteenth and nineteenth centuries the rate of discovery of new elements increased ...14 KB (2,185 words) - 08:40, 18 July 2024
- Neon (chemical symbol Ne, atomic number 10) is the fourth most abundant ... meaning "new") was discovered by Scottish chemist William Ramsay ...6 KB (841 words) - 16:18, 11 November 2022
- Thulium (chemical symbol Tm, atomic number 69) is the least abundant ... techniques have led to easier separation of the rare earths, which has ...9 KB (1,135 words) - 23:14, 30 April 2023
- Protactinium (chemical symbol Pa, atomic number 91) is a member of ... The isotope protactinium-231 occurs in pitchblende to the extent of ...9 KB (1,150 words) - 08:16, 2 December 2022
- Promethium (chemical symbol Pm, atomic number 61) is a metallic element ... Promethium can be formed as a product of uranium fission. Only trace ...11 KB (1,429 words) - 23:55, 1 December 2022
- Ytterbium (chemical symbol Yb, atomic number 70) is a soft silvery ... associated with yttrium or other related elements and is used in certain steels ...11 KB (1,375 words) - 21:33, 4 June 2023
- Erbium (chemical symbol Er, atomic number 68) is a silvery metallic ... It is associated with several other rare earth elements in the mineral ...11 KB (1,419 words) - 19:19, 13 February 2024
- Rhenium (chemical symbol Re, atomic number 75) is a silvery-white ... This mineral, however, is not an economically viable source of the element. ...10 KB (1,384 words) - 20:01, 8 December 2022
- :For other meanings of the abbreviation Pr, see PR. number=59 | symbol ... (chemical symbol Pr, atomic number 59) is a soft silvery metallic ...12 KB (1,535 words) - 22:14, 30 November 2022
- Lanthanum (chemical symbol La, atomic number 57) is a soft, silvery ... Lanthanum, its alloys, and its compounds have a wide range of applications ...11 KB (1,398 words) - 22:23, 22 October 2022
- Lutetium (chemical symbol Lu, atomic number 71) is a silvery white ... Found with almost all other rare-earth metals but never by itself ...11 KB (1,371 words) - 03:06, 5 November 2022
- Cesium (also spelled caesium, chemical symbol Cs, atomic number 55 ... This element has many isotopes, of which the single stable isotope ...14 KB (1,931 words) - 00:09, 4 December 2023
- Terbium (chemical symbol Tb, atomic number 65) is a silvery-white ... Nd,Y)PO4, which contains up to 0.03 percent of terbium), xenotime (YPO4) and ...9 KB (1,141 words) - 03:47, 30 April 2023
- Holmium (chemical symbol Ho, atomic number 67) is a relatively soft ... Of all the naturally occurring elements, holmium has the highest magnetic ...10 KB (1,274 words) - 09:31, 18 July 2024
- the composition, structure, and properties of matter, as well as the changes ... Disciplines within chemistry are traditionally grouped by the type ...20 KB (2,886 words) - 14:48, 5 December 2023
- Germanium (chemical symbol Ge, atomic number 32) is a lustrous, hard ... The development of the germanium transistor opened the door to numerous ...13 KB (1,672 words) - 18:19, 21 May 2024
- Dysprosium (chemical symbol Dy, atomic number 66) is a rare earth ... with erbium, holmium, and other rare earth elements. == History == ...10 KB (1,193 words) - 17:27, 12 February 2024
- Bromine (chemical symbol Br, atomic number 35) is a nonmetal that ... Bromine is an important resource for the production of a wide range ...10 KB (1,346 words) - 04:33, 22 November 2023
- Fluorine (chemical symbol F, atomic number 9) is a nonmetal that belongs ... Fluorine and its compounds are useful for a wide range of applications ...13 KB (1,855 words) - 17:47, 28 March 2024
