Bromine Research Paper

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Bromine
Bromine (Br) is the 35th element on the periodic table and it is in group 7A (which is the halogen group), period 4, and block p. It is the only nonmetal that is a liquid. In its natural state (20°C) it is a reddish-brown liquid, which can easily vaporize at room temperature into a gas of the same colors. It comes from the Greek word “bromos” meaning stench, and true to its name, in gas form Bromine has a strong smell that is similar to Chlorine. Bromine has a relative atomic mass number of 79.904. Isotopes
Bromine has several known isotopes. The isotopes that occur most often in nature are Br-79 and Br-81. Both of these isotopes half-lives are stable. Some of the other isotopes like Br-67, Br-68, and Br-69 have a suspected decay mode of proton emission, which is the ejection of a proton from an atom …show more content…
Because a proton was ejected, the atom changes from one element to another. Isotopes Br-70, Br-70m, Br-71, Br-72, Br-73, Br-74, Br-74m, Br-75, Br-76, and Br-77 only undergo a decay mode of electron capture. Electron capture is when an electron from the atom’s inner electron shell gets pulled into the nucleus and combines with a proton which forms a neutron and a neutrino, and the neutrino is ejected. (A neutrino is a subatomic particle that doesn’t normally interact with matter.) This happens in order to make the atom more stable. Because the atom loses a proton when it undergoes electron capture, it changes from one element to another, but the overall amount of particles stays the same. The

Bromine Research Paper

Did you know that element bromine was first the first sedative in medicine? A sedative is a drug used to promote sleep or calmness. Bromine was discovered in 1826 by two different scientists, and one scientist was still in school! It is essentially a toxic red liquid found near the earth’s crust, and has an awful stench. The name Boron even came from the word “bromos” in french meaning stench. It isn’t naturally an element on Earth, and evaporates under normal conditions. It is also known as being…

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investigation to compare the reactivities of appropriate alkenes with the corresponding alkanes in bromine water Aim- To compare the reactivities of alkanes and alkenes Hypothesis- The alkene will be more reactive due to the double bond Equipment- Cyclohexene, cyclohexane, bromine water, 2 test tubes, test tube rack Method- 1. Have 1mL of the hexane and hexane in separate test tubes 2. Add 10 drops of bromine water and shake 3. Record results Results- Properties Cyclohexane Cyclohexene Odour…

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