Search results for "Caesium-137" - New World Encyclopedia
From New World Encyclopedia
- Cesium (also spelled caesium, chemical symbol Cs, atomic number 55) is a member of the group of chemical elements known as alkali metals. Soft ...14 KB (1,931 words) - 00:09, 4 December 2023
- Francium (chemical symbol Fr, atomic number 87) is a radioactive metal found in minute amounts in uranium and thorium ores. Although many isotopes ...6 KB (795 words) - 04:56, 9 April 2024
- Barium (chemical symbol Ba, atomic number 56) is a soft, silvery chemical element classified as an alkaline earth metal. Given its reactivity ...13 KB (1,855 words) - 08:07, 20 September 2023
- Category:Public number=54 | symbol=Xe | name=xenon | left=iodine | right=cesium | above=Kr | below=Rn | color1=#c0ffff | color2=green ...13 KB (1,905 words) - 14:16, 20 May 2023
- Rubidium (chemical symbol Rb, atomic number 37) is a soft, silvery-white metallic element of the alkali metal group. Rb-87, a naturally occurring ...14 KB (1,892 words) - 20:57, 21 December 2022
- The main group elements of the periodic table are groups 1, 2 and 13 through 18. Elements in these groups are collectively known as main group ...30 KB (4,368 words) - 00:41, 24 November 2022
- A chemical element, often called simply element, is the class of atoms which contain the same number of protons. An older definition refers to ...10 KB (1,624 words) - 14:39, 5 December 2023
- An atom (Greek άτομον from ά: non and τομον: divisible) is a submicroscopic structure found in all ordinary matter. Originally the ...13 KB (2,062 words) - 06:25, 21 August 2023
- Indian Standard Time (IST) represents the time observed throughout India, with a time offset of UTC+5:30. India does not observe daylight saving ...13 KB (1,858 words) - 18:36, 4 March 2024
- A clock (from the Latin word cloca, meaning "bell") is an instrument for measuring time. In its most common form, in use since at least ...26 KB (3,970 words) - 22:10, 7 January 2024
- Electronegativity is one of the fundamental concepts for an understanding of chemical bonding. The first modern definition was suggested by Linus ...16 KB (2,171 words) - 15:58, 13 February 2024
- Category:Public [[Image:plasma fountain.gif|thumb|300px|right|The Earth's "plasma fountain," showing oxygen, helium, and hydrogen ...17 KB (2,619 words) - 11:09, 6 March 2024
- which are meant to decrease soil levels of caesium-137. UN Office for the Coordination of Humanitarian Affairs. 2004. The United Nations and Chernobyl ...48 KB (6,863 words) - 08:51, 27 September 2023
- Sodium chloride, also known as common salt or table salt, is a chemical compound with the formula NaCl. Its mineral form is called halite. It ...16 KB (2,377 words) - 15:04, 27 April 2023
