Element Bromine (Br), Group 17, Atomic Number 35, p-block, Mass 79.904. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. The four quantum numbers for electron 35 (Br) are: 4,1,0, -1/2 The first quantum number tells you that the electron (#35) is in the fourth energy level. The second quantum number tells you this electron is in a p sublevel. The third quantum number tells you which orbital the electron is in. The fourth quantum number tells you that this electron is a down spin electron. Here is a video which. The atomic number of bromine (Br) is 35.The atomic weight of Br is 79.904 grams per mole.Bromine is a diatomic molecule, Br2See the Web Links to the left of this answer for a periodic table with. Drivers syx. Bromine is a chemical element with atomic number 35 which means there are 35 protons and 35 electrons in the atomic structure. The chemical symbol for Bromine is Br. Atomic Mass of Bromine. Atomic number of bromine is 35, its electronic configuration is 2, 8, 18, 7. The detailed configuration is Br: 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 5.
Bromine
| Atomic Number: | 35 | Atomic Radius: | 183 pm (Van der Waals) |
| Atomic Symbol: | Br | Melting Point: | -7.2 °C |
| Atomic Weight: | 79.90 | Boiling Point: | 58.8 °C |
| Electron Configuration: | [Ar]4s23d104p5 | Oxidation States: | , 5, 4, 3, 1, −1 (a strongly acidic oxide) |
Atomic Number Of Boron
History
From the Greek word bromos, stench. Discovered by Balard in 1826, but not prepared in quantity until 1860.
Sources
Atomic Number Of Bromine
A member of the halogen group, bromine is obtained from natural brines from wells in Michigan and Arkansas. Some bromine is extracted today from seawater, which contains only about 85 ppm.
Properties
Bromine is the only nonmetallic liquid element. It is a heavy, mobile, reddish-brown liquid, volatilizing readily at room temperature to a red vapor with a strong disagreeable odor, resembling chlorine, and having a very irritating effect on the eyes and throat; it is readily soluble in water or carbon disulfide, forming a red solution, is less active than chlorine but more so than iodine; it unites readily with many elements and has a bleaching action; when spilled on the skin it produces painful sores. It presents a serious health hazard, and maximum safety precautions should be taken when handling it.
Production
Atomic Number Of Bromine 81
Much of the bromine output in the U.S. was used in the production of ethylene dibromide, a lead scavenger used in making gasoline anti-knock compounds. Lead in gasoline, however, has been drastically reduced due to environmental considerations. This will greatly affect future production of bromine.
Uses
Atomic Number Of Brass
Bromine is used in making fumigants, flameproofing agents, water purification compounds, dyes, medicines, sanitizers, inorganic bromides for photography, etc. Organic bromides are also important.