Electron configurations bromine

Bromine [7726-95-6] Bi2, is the only nonmetallic element that is aUquid at standard conditions. Bromine [10097-32-2] Br, has at no. 35, at wt 79.904, and belongs to Group 17 (VIIA) of the Periodic Table, the halogens. Its electronic configuration is. The element s known isotopes... 

On another sheet of paper, write out the electron configurations for carbon, hydrogen, nitrogen, oxygen, bromine, chlorine, and iodine. 

On the basis of the number of holes and the electron configurations, identify the different colored balls as carbon, hydrogen, nitrogen, and oxygen. Label them in Data Table 1. (The colors of bromine, chlorine, and iodine have already been recorded for you.)... 

By gaining one electron, the bromine atom attains the electron configuration of krypton and also attains a charge of 1-. The two ions expected are therefore Ca + and Br. Since calcium bromide as a whole cannot have any net charge, there must be two bromide ions for each calcium ion hence, the formula is CaBr2. 

The alkali metals, as we have seen, are frisky little devils. If there is any doubt about this, watch potassium (K) burst into flame in the presence of air, or watch sodium (Na) react violently in water. As we learned in Chapter 4, there are some electron configurations that are very stable, mainly those having eight outermost electrons. The alkali metals have one outermost electron, which they are anxious to dispose of. These electrons are usually transferred to nonmetals, such as oxygen (O), chlorine (Cl), fluorine (F), and bromine (Br), with a release of energy that is predictable, pronounced, and unforgettable. 

Example Write the electron configuration for Bromine (35 electrons) ... 

The semiquinones, among which are Wurster s red and quinhydrone, form a remarkable class of intensely coloured compounds. Here there is no question of a molecular compound of one molecule of 0j -dimethyl-/>-phenylenediamine (I) and one molecule of this compound, oxidized by two atoms of bromine to the dimethylquinone diimonium salt (II). Wurster s red is indeed a true monomeric semiquinone resonating between two electron configurations, hence the colour. 

One-electron oxidation of phenyl iron(III) tetraarylpor-phyrin complexes with bromine in chloroform at —60°C produces deep red solutions whose H and H NMR spectra indicate that they are the corresponding iron(IV) complexes. For the low-spin aryl Fe porphyrins the electron configuration is (dxyf(dxz,dyzf, with one tt-symmetry unpaired electron, and for the low-spin aryl Fe porphyrins the electron configuration is d, yf- d, zAyzf with two TT-symmetry unpaired electrons. The aryl Fe porphyrins are thermally unstable, and upon warming convert cleanly to A-phenylporphyrin complexes of Fe by reductive elimination. This process has been investigated by electrochemical techniques, by which it was shown that the reversible (at fast scan rates) one-electron oxidation of a-aryl complexes of PFe was followed by an irreversible chemical reaction that yielded the Fe complex of the A-phenylporphyrin, which could then be oxidized reversibly by one electron to yield the Fe complex of the A-phenylporphyrin. (If the Fe complex of the N-phenylporphyrin is instead reduced by one electron, the Fe complex of the A-phenylporphyrin is formed reversibly at... 

Assuming covalent bonds, write electronic structures for the molecules GIF (chlorine fluoride), BrFg (bromine trifluofide), SbCl5 (antimony penta chloHde), HgSg (hydrogen disulfide). In which of these molecules are there atoms with electron configurations that are not noble-gas configurations ... 

What is the electron configuration of bromine, whose atomic number is 35 ... 

Bromine has a greater electron affinity than selenium. Gaining the extra electron changes the Br atom into Br, which has a particularly stable closed-shell electron configuration (the same as that of the noble gas atom krypton [Kr]). No such configuration is created when a Se atom gains an additional electron. 

The only chemically stable ion of rubidium is Rb+. The most stable monatomic ion of bromine is Br. Krypton (Kr) is among the least reactive of all elements. Compare the electron configurations of Rb, Br , and Kr. Then predict the most stable monatomic ions of strontium (Sr) and selenium (Se). 

The halogens—fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At)—are active nonmetals. Because of their chemical reactivity, they don t exist as free elements in nature. Their chemical behavior is characterized by a tendency to gain one electron to complete their valence-electron configuration and form a 1 — ion with a noble-gas configuration. Chlorine, for example, has the configuration [Ne]3s 3p. ... 

Write electronic configurations for chlorine (atomic number 17), bromine (atomic number 35), and iodine (atomic number 53). 

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