Phe redirects here. For other uses, see Phe (disambiguation) . Phenylalanine /ËfÉnáµlËaelÉËniËn/ (ËfÉnáµlËÃ¦lÉËniËn abbreviated As phe Or) f is an- Î± amino acid with the Formula c 6 h 5 ch 2(CH nh)2. Cooh this essential amino acid is classified as, neutral and nonpolar because of the inert and hydrophobic nature of the benzyl side. chainhe redirects here. For other uses, see Phe (disambiguation) . Phenylalanine /ËfÉnáµlËaelÉËniËn/ (ËfÉnáµlËÃ¦lÉËniËn abbreviated As phe Or) f is an- Î± amino acid with the Formula c 6 h 5 ch 2(CH nh)2. Cooh this essential amino acid is classified as, neutral and nonpolar because of the inert and hydrophobic nature of the benzyl side. chain
In probability theory, the sample space of an experiment or random trial is the set of all possible outcomes or results of that experiment. A sample space is usually denoted using set notation, and the possible outcomes are listed as elements in the set.
It is common to see this line: atoms are mostly empty space. That line appears inadequate and misleading. Atoms are ultimately made up of electrons and quarks. Electrons and quarks are by definition 'point particles', meaning they have no spatial extent. So there is nothing there that takes up space. Wouldn't it be more accurate to state something like 'atoms have mass and electrical fields but there is nothing there that takes up space', or, in the spirit of the 'mostly empty space' line to say 'atoms are nothing but empty space'.