Argon (Ar) - Argon is a chemical element with the symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. Know the Uses of Argon, Chemical Properties of Argon, Atomic Mass of Argon.
Atomic number: 18 Group numbers: 18 Period: 3 Electronic configuration: [Ne] 3s2 3p6 Formal oxidation number: 0 Electronegativities: - Atomic radius / pm: 188 Relative atomic mass: 39.948(1)Argon was discovered by Lord Raleigh and Sir William Ramsay (GB) in 1894. The origin of the ...
Atomic number18[1] CAS number7440-37-1[1] Position in the periodic tableGroupPeriodBlock 18[1]3[1]p[1] Location of Argon on the Periodic Table Properties and Characteristics of Argon General Properties Relative atomic mass39.948[1]
Potassium (Latin kalium from the Arabic gali meaning alkali) is an element with relative atomic mass of 39.0983 and atomic number 19. A silvery white and soft, very reactive alkali metal, it resembles Na. Its relative density is 0.86, its melting point is 63.5°C and its boiling point is...
relative density 1.784(0 ℃) soluble in water, the solubility is 5.6g/cm3 water at 0 °c. Also soluble in ethanol. Use Commonly used as inert protective gas, filled with various types of bulbs argon atom - Risk and Safety Safety Description 38 - In case of insufficient ventilation, we...
relative density 1.784(0 ℃) soluble in water, the solubility is 5.6g/cm3 water at 0 °c. Also soluble in ethanol. Use Commonly used as inert protective gas, filled with various types of bulbs Argon - Risk and Safety Safety Description 38 - In case of insufficient ventilation, wear su...
Neon's relative scarcity on Earth is due to its high volatility and it forms no compounds; 8. Neon has the narrowest liquid range of any element: from 24.55 to 27.05K (−248.45 to −245.95°C or −415.21 to −410.71°F). It has over 40 times the refrigerating capacity (per un...
Neon's relative scarcity on Earth is due to its high volatility and it forms no compounds; 8. Neon has the narrowest liquid range of any element: from 24.55 to 27.05 K (−248.45 to −245.95°C or −415.21 to −410.71°F). It has over 40 times the refrigerating capacity (per ...
Potassium is an alkali metal of Group IA in which its companions are lithium, sodium, rubidium and caesium. It is highly reactive with a relative density of 0·86 and a melting point of 62·3° C, an atomic weight of 39·0983 and an atomic number of 19; it has 18 isotopes. One of...
These relative weights computed from the chemical equation are sometimes called equation weights.The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. We use the most common isotopes. This is how to calculate molar mass (average molecular weight),...