Search results for "List of elements by atomic mass" - New World Encyclopedia
From New World Encyclopedia
- 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 ...15 KB (2,217 words) - 15:59, 25 January 2023
- 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
- 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) - 09:43, 5 December 2022
- 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
- Chlorine (chemical symbol Cl, atomic number 17) is a nonmetal that ... in nature and necessary for most forms of life, including human life ...15 KB (2,040 words) - 17:07, 10 December 2023
- Argon (chemical symbol Ar, atomic number 18) is a member of the noble ... The inertness of argon is a very useful property for a number of applications ...11 KB (1,517 words) - 06:25, 12 August 2023
- Europium (chemical symbol Eu, atomic number 63) is the most reactive ... has also been identified in the spectra of the Sun and certain stars. ...10 KB (1,254 words) - 04:34, 23 March 2024
- Scandium (chemical symbol Sc, atomic number 21) is a soft, silvery ... with aluminum for minor components needed by the aerospace industry and ...12 KB (1,615 words) - 17:06, 25 January 2023
- samples. 7Li would thereforehave a content of up to 96.25%. ... Lithium (chemical symbol Li, atomic number 3) is the lightest solid ...16 KB (2,302 words) - 04:29, 29 October 2022
- Uncertainty is a term used in subtly different ways in a number of ... mass values given on the list of elements by atomic mass, the true value ...17 KB (2,527 words) - 01:33, 3 May 2023
- (chemical symbol Nd, atomic number 60) is a silvery metallic element ... It constitutes about 38 parts per million (ppm) of the Earth’s crust. ...12 KB (1,578 words) - 16:18, 11 November 2022
- In the Standard Model of particle physics, a meson is a composite ... Since mesons are composed of quarks, they participate in both the ...20 KB (3,017 words) - 16:16, 9 November 2022
- Cerium (chemical symbol Ce, atomic number 58) is a silvery metallic ... Cerium, its alloys, and its compounds are valuable for a variety of ...15 KB (2,039 words) - 23:59, 3 December 2023
- Samarium (chemical symbol Sm, atomic number 62) is a bright silvery ... in nature, but, like other rare earth elements, it is contained in many ...11 KB (1,437 words) - 02:07, 23 December 2022
- Manganese (chemical symbol Mn, atomic number 25) is a gray-white metal ... The greatest demand for manganese is for the production of iron and ...14 KB (1,946 words) - 11:03, 9 March 2023
- Cobalt (chemical symbol Co, atomic number 27) is a hard, lustrous ... Cobalt compounds are used in the production of inks, paints, and varnishes ...13 KB (1,769 words) - 22:14, 7 January 2024
- Thorium (chemical symbol Th, atomic number 90) is a naturally occurring ... as lead. Soil commonly contains an average of around 12 parts per million ...14 KB (1,909 words) - 23:00, 30 April 2023
- Rhodium (chemical symbol Rh, atomic number 45) is a rare, silvery ... it is a symbol of wealth and is occasionally used in the presentation ...13 KB (1,685 words) - 20:04, 8 December 2022
- Ruthenium (chemical symbol Ru, atomic number 44) is a rare, hard, ... platinum group metals in the Ural Mountains of western Russia and in parts ...13 KB (1,814 words) - 18:24, 22 December 2022
- Chromium (chemical symbol Cr, atomic number 24) is a hard, shiny, ... used in paints and pigments. The red color of rubies derives from the presence ...15 KB (2,106 words) - 21:52, 10 December 2023
- Thallium (chemical symbol Tl, atomic number 81) is a soft, malleable ... for low-temperature measurements. Crystals of thallium bromide-iodide have ...13 KB (1,784 words) - 15:06, 30 April 2023
- Tellurium (chemical symbol Te, atomic number 52) is a relatively rare ... with care. Exposure to even small amounts of tellurium can generate a garlicky ...14 KB (1,880 words) - 05:35, 27 February 2023
- Bismuth (chemical symbol Bi, atomic number 83) is a brittle, white ... This element expands on freezing and was long an important component ...14 KB (1,891 words) - 17:59, 31 October 2023
- Hafnium (chemical symbol Hf, atomic number 72) is a lustrous, silvery ... the two difficult to separate. About half of all hafnium metal manufactured ...10 KB (1,277 words) - 16:40, 21 January 2024
- Rubidium (chemical symbol Rb, atomic number 37) is a soft, silvery ... and zinnwaldite, which contains traces of up to one percent of its oxide ...14 KB (1,892 words) - 20:57, 21 December 2022
- Palladium (chemical symbol Pd, atomic number 46) is a rare, silver ... addition, this element is useful in a number of other applications, including ...13 KB (1,749 words) - 06:25, 18 November 2022
- Yttrium (chemical symbol Y, atomic number 39) is a lustrous, silvery ... Interestingly, lunar rock samples retrieved by Apollo space missions were ...12 KB (1,634 words) - 21:34, 4 June 2023
- for "discoveries in the chemistry of the transuranium elements" ... , contributed to the discovery and isolation of ten elements, developed ...29 KB (4,299 words) - 07:54, 24 January 2023
- Gadolinium (chemical symbol Gd, atomic number 64) is a silvery white ... Today, gadolinium is isolated by techniques such as ion exchange and ...13 KB (1,750 words) - 07:39, 15 April 2024
- Strontium (chemical symbol Sr, atomic number 38) is a soft, silvery ... is widely used in the glass screens of color television sets. Strontium ...14 KB (1,860 words) - 21:04, 26 February 2023
- Gallium (chemical symbol Ga, atomic number 31) is a rare, soft, silvery ... Gallium is most commonly used in the form of the compound gallium ...15 KB (2,122 words) - 04:06, 18 April 2024
- Oxygen (chemical symbol O, atomic number 8) is the second most common ... Oxygen is essential for the respiratory function of humans, animals ...23 KB (3,469 words) - 06:02, 18 November 2022
- Molybdenum (chemical symbol Mo, atomic number 42) is a silvery white ... free in nature. The main commercial source of molybdenum is the mineral molybdenite ...14 KB (1,925 words) - 19:51, 9 November 2022
- Tantalum, formerly tantalium (chemical symbol Ta, atomic number 73 ... for metalworking, and for the production of superalloys for jet engine ...14 KB (1,813 words) - 03:03, 19 April 2023
- Osmium (chemical symbol Os, atomic number 76) is a hard, brittle, ... The compound osmium tetroxide is very toxic but has a number of important ...14 KB (1,905 words) - 04:43, 18 November 2022
