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... when you electrolysed the molten salt. • H20(l) H+(aq) + OH- (aq) The Ions present are: Na+, Cl-, OH- and H+. At the Cathode: The ions present here are Na+ and H+. The most reactive ion is going stay in the solution. Looking at the reactivity series, Na+ (sodium) is more reactive than H (hydrogen) and so will remain in the solution, as hydrogen gas bubbles ... ...
... , but that electron hasn't been lost - it may no longer have an attachment to a particular atom, but it's still there in the structure. Sodium metal is therefore written as Na - not Na+. The physical properties of metals This strong bonding and the fact that the particles present in metals are tightly packed in the lattice results in dense, strong materials with high ... ...
... anions and cations together. Coordination Number- of an atom is the number of ions opposite charge that surround the ion in a crystal. Ex. NaCl, because Na positive and has ion is surrounded by 6 Cl negative ions, Na positive has a coordination number of 6. Metallic Bonds- consists of the attraction of the free-floating valence electrons for the positively charged metal ions. These bonds ... ...
... non-metal negative ion's ending is changed to "ide". However, there is only an exception. When the negative ions are polyatomic ions, the name remains unchanged. Examples: 1. MgO 2. NaOH CATION: Na+ is named as sodium (Group I metal) CATION: Mg2+ is named magnesium ANION: OH- is named as hydroxide ANION: O2- is named oxide Name of compound is sodium hydroxide Name of ... ...
... , e.g., an alkali metal. [CH]n + 3x/2 I 2 ! [CH]n x+ +xI3 - oxidative doping [CH] n + xNa ! [CH]n x- + xNa + reductive doping The doped polymer is thus a salt. However, it is not the counter ions, I3 - or Na+, but the charges on the polymer that are the mobile charge carriers (see Mechanism of polymer conductivity, below). By applying an electric field perpendicular to the film, the counter ions ... ...
