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1. Isotopes of argon: Argon (18Ar) has 26 known isotopes, from Ar to Ar and 1 isomer (Ar), of which three are stable (Ar, Ar, and Ar). On the Earth, Ar makes up 99.6% of natural argon. (Physics) [100%] 2023-01-30 [Isotopes of argon] [Lists of isotopes by element]...

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1. Argon: Argon, a gaseous constituent of atmospheric air. For more than a hundred years before 1894 it had been supposed that the composition of the atmosphere was thoroughly known. Beyond variable quantities of moisture and traces of carbonic acid, hydrogen, ammonia ... [73%] 2022-09-02
2. Argon: Argon is a chemical element, typically found as a gas in its elemental form. It has the chemical symbol Ar, atomic number (number of protons) Z = 18, and a standard atomic weight of 39.948 g•mol. [73%] 2023-08-22
3. Argon: Argon (Ar) is the most common of the noble gases. It is an inert component which comprises 0.934% of the Earth's atmosphere. [73%] 2023-02-11 [Elements]
4. Argon: Argon (chemical symbol Ar, atomic number 18) is a member of the noble gas family of elements. It is present in the Earth's atmosphere at slightly under one percent (by volume), making it the most common noble gas on ... [73%] 2023-02-03
5. Argon (1908 automobile): The Argon was made by Grannaway Engineering Co, Earls Court, London S.W. in 1908. (Engineering) [73%] 2023-09-21 [Vintage vehicles]
6. Argon: Argon is die chemiese element in die periodieke tabel met die simbool Ar en atoomgetal 18. Argon is die derde edelgas in groep 18 en maak ongeveer 1% van die Aarde se atmosfeer uit. [73%] 2024-11-09
7. Argon (homonymie): Cet article possède des paronymes, voir Argonne et Orgon. Cette page d’homonymie répertorie les différents sujets et articles portant le même nom. (Homonymie) [73%] 2025-02-20
8. Argon: Argon is a chemical element; it has symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. [73%] 2025-05-27 [Argon] [Chemical elements]...
9. Isotope: For a given chemical element, every atom has the same number of protons in its nucleus, but the number of neutrons per atom may vary. In other words, the atoms of an element can have two or more different structures ... [61%] 2023-02-04
10. Isotope: Isotopes (from Greek Ισότοπο, "same place") are forms of chemical elements which have the same atomic number but a different atomic mass, or in other words the same number of protons in the atomic nucleus but different numbers of neutrons. Radioactive ... [61%] 2023-10-28
11. Isotope: For a given chemical element, every atom has the same number of protons in its nucleus, but the number of neutrons per atom may vary. In other words, the atoms of an element can have two or more different structures ... [61%] 2023-02-04
12. Isotope (catamaran): The Isotope is an American catamaran sailing dinghy that was designed by Frank Meldau as a one-design racer and first built in 1962. The design is the larger stablemate of the Cheshire 14 catamaran. (Catamaran) [61%] 2023-12-14 [Dinghies] [Catamarans]...
13. Isotope: For a given chemical element, every atom has the same number of protons in its nucleus, but the number of neutrons per atom may vary. In other words, the atoms of an element can have two or more different structures ... [61%] 2023-02-04
14. Isotope (album): Isotope is an album by pianist Kirk Lightsey that was recorded in 1983 and released by the Dutch Criss Cross Jazz label. The 1993 CD reissue included an additional track recorded in 1991. (Album) [61%] 2023-10-28 [Kirk Lightsey albums] [1983 albums]...
15. Isotope: Isotopes are two or more atoms that have the same number of protons (i.e. they are of the same element), but different numbers of neutrons. [61%] 2023-02-28 [Chemistry] [Physics]...
16. Isotope: Isotopes are distinct nuclear species (or nuclides, as technical term) of the same element. They have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element ... (Physics) [61%] 2023-10-28 [Isotopes] [Nuclear physics]...
17. Isotope: For a given chemical element, every atom has the same number of protons in its nucleus, but the number of neutrons per atom may vary. In other words, the atoms of an element can have two or more different structures ... [61%] 2023-02-04
18. Isotope: For a given chemical element, every atom has the same number of protons in its nucleus, but the number of neutrons per atom may vary. In other words, the atoms of an element can have two or more different structures ... [61%] 2023-02-04
19. Isotope: Isotopes are distinct nuclear species (or nuclides) of the same chemical element. They have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element), but differ ... (Different atoms of the same element) [61%] 2024-06-16 [Isotopes] [Nuclear physics]...