nomenclature - Why is UuX used as a symbol for unnamed elements …
Feb 16, 2017 · Until recently, the last few elements on the periodic table had the chemical symbols (now they have formal chemical symbols!): Uub, Uut, Uuq, Uup, Uuh, Uus, and Uuo Why did they have …
Why most of the atoms with fully filled outer orbits are gaseous?
May 5, 2016 · Most of the elements with fully filled outer orbits are gaseous in nature (He, Ne, Ar, Kr, Xe, Rn) with exception of Uuo (as per Wikipedia its solid). Why these fully filled outer orbit elements …
Can metals have a net negative charge - Chemistry Stack Exchange
Mar 16, 2015 · More interestingly, regarding the possibility of noble gas anions, all noble gases up to radon have an endothermic electron affinity, and could not even in principle stabilize a negative …
What is advantage of creating elements that disappear in a flash?
The Island of Stability is believed to be centered around 120 protons and 180 neutrons. Element 118 X194X21942Uuo X 194 X 2 2 194 U u o has been produced, and while its most stable isotope has a …
Is beryllium an alkaline earth metal? - Chemistry Stack Exchange
Shriver & Atkins 6th ed: "The elements calcium, strontium, barium, and radium are known as the alkaline earth metals, but the term is often applied to the whole of Group 2." (p 336) It actually excludes Mg …
Cobalt Nitrate Test - Chemistry Stack Exchange
Apr 25, 2024 · For future reference: for the body of questions, answers, and comments, chemistry.se offers to use mhchem as a comfortable method to add chemical equations and report numerical …
Why would the theoretical pH not match the measured pH when …
Jul 5, 2024 · One of reasons is your theoretical pH prediction worked with approximation that molar concentrations are numerically equal to thermodynamic activity. // You did not provide the volume of …
Solubility of amlodipine besylate - Chemistry Stack Exchange
Nov 5, 2023 · In European Pharmacopoeia, the drug amlodipine besylate is characterised as slightly soluble in water and freely soluble in methanol (additionally, sparingly soluble in anhydrous ethanol …
Reason for the formation of azeotropes - Chemistry Stack Exchange
Feb 19, 2019 · Before getting to the azeotropes, it's worth reminding ourselves of the relevant assumption that we make about ideal mixtures: that the intermolecular interactions have constant …
Meaning of mass concentration "units" % m/v [closed]
Nov 5, 2019 · Since the question raised a discussion in the comments, I guess it won't hurt putting up a brief summarizing answer. Notation % m/v, as you might've guessed, refers to the ratio between the …