Search results for "Atomic mass/Table" - New World Encyclopedia
From New World Encyclopedia
- Thulium (chemical symbol Tm, atomic number 69) is the least abundant ... that lies in period six of the periodic table, between erbium and ytterbium ...9 KB (1,135 words) - 23:14, 30 April 2023
- Promethium (chemical symbol Pm, atomic number 61) is a metallic element ... of four parts per quintillion (1018) by mass. last = Attrep | first ...11 KB (1,429 words) - 23:55, 1 December 2022
- Protactinium (chemical symbol Pa, atomic number 91) is a member of ... In 1961, the U.K. Atomic Energy Authority produced 125 grams (g) of ...9 KB (1,150 words) - 08:16, 2 December 2022
- Chlorine (chemical symbol Cl, atomic number 17) is a nonmetal that ... naturally occurring waters. Common salt or table salt is the compound sodium ...15 KB (2,040 words) - 17:07, 10 December 2023
- Rhenium (chemical symbol Re, atomic number 75) is a silvery-white ... based on his examination of the periodic table. Its discovery is generally ...10 KB (1,384 words) - 20:01, 8 December 2022
- particles, such as the ratio of the mass of the proton (mp) to that ... discovered that neutrinos can have nonzero mass, and his list includes a quantity ...22 KB (3,290 words) - 05:07, 24 November 2022
- one notices that its properties (charge and mass) seem to change. This is an ... just stated as a charge of −1) and a mass of about 9.11 × 10−31 kilograms ...10 KB (1,515 words) - 15:57, 13 February 2024
- Cesium (also spelled caesium, chemical symbol Cs, atomic number 55 ... of time and is therefore the basis of atomic clocks. Some of its radioactive ...14 KB (1,931 words) - 00:09, 4 December 2023
- Curium (chemical symbol Cm, atomic number 96) is a radioactive, metallic ... located in period seven of the periodic table, between americium and berkelium ...10 KB (1,354 words) - 06:46, 12 January 2024
- Ytterbium (chemical symbol Yb, atomic number 70) is a soft silvery ... that lies in period six of the periodic table, between thulium and lutetium ...11 KB (1,375 words) - 21:33, 4 June 2023
- Erbium (chemical symbol Er, atomic number 68) is a silvery metallic ... that lies in period six of the periodic table, between holmium and thulium ...11 KB (1,419 words) - 19:19, 13 February 2024
- While no meson is stable, those of lower mass are nonetheless more stable ... holding protons and neutrons together in atomic nuclei, is currently explained ...20 KB (3,017 words) - 16:16, 9 November 2022
- Lanthanum (chemical symbol La, atomic number 57) is a soft, silvery ... three (former group 3B) of the periodic table. It is often considered the ...11 KB (1,398 words) - 22:23, 22 October 2022
- Germanium (chemical symbol Ge, atomic number 32) is a lustrous, hard ... In the periodic table, germanium is located in group 14 (former group ...13 KB (1,672 words) - 09:43, 5 December 2022
- The main group elements of the periodic table are groups 1, 2 and ... of elements in Group 1 of the periodic table (excluding hydrogen in all ...30 KB (4,368 words) - 00:41, 24 November 2022
- only microscopic forces occurring in atomic collisions. In the 1830s ... change. Likewise, when a book sits on a table, the table does no work on ...9 KB (1,470 words) - 03:50, 9 November 2022
- Bromine (chemical symbol Br, atomic number 35) is a nonmetal that ... In the periodic table, bromine is located in group 17 (former group ...10 KB (1,346 words) - 04:33, 22 November 2023
- Fluorine (chemical symbol F, atomic number 9) is a nonmetal that belongs ... World War II, as a step in the making of atomic bombs in the Manhattan project ...13 KB (1,855 words) - 17:47, 28 March 2024
- Terbium (chemical symbol Tb, atomic number 65) is a silvery-white ... that lies in period six of the periodic table, between gadolinium and dysprosium ...9 KB (1,141 words) - 03:47, 30 April 2023
- Lutetium (chemical symbol Lu, atomic number 71) is a silvery white ... A strict correlation between periodic table blocks and chemical series ...11 KB (1,371 words) - 03:06, 5 November 2022
