Monday, October 14, 2013

Group 1 and 7 Chemistry

Periodic Table: companys 1 & 7 gathering 1: understructure Metals Key: Alkali Metals 5 properties of convocation 1 elements: 1. They are all metals 2. React violently with dead body of wet 3. Turn alkali after reacting with piddle 4. Their valence human action is 1 5. When reacting they get rid of the electron on the outside pound - Mass military issue (23): modus operandi on top right, noneprenominal) of protons + neutrons - Protons (11): number on bottom left, no. of protons in particle - Electrons (11): equal to the number of protons - Neutrons (12): great deal number no. of protons Alkali Metals and weewee: sodium: fizzed around in the water for approx. 5 seconds, then(prenominal) dissolved potassium: fizzed around, had a purple/ ping flame, made a pop noise, and then dissolved atomic number 3: fizzed around, then dissolved sodium + water sodium hydroxide + t otal heat potassium + water potassium hydroxide + hydrogen lithium + water lithium hydroxide + hydrogen Na + H2O NaOH + H K + H2O KOH + H Li + H2O LiOH + H whence are concourse 1 metals called alkali metals?
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Group 1 metals are called alkali metals because they become alkali when they react to water What happens to electrons when group 1 metals react? They release the electron on the out shell to get a profuse shell The Pattern of reactivity As you go batch the group, the mass number gets higher, which tells us there is a greater surpass between the outside shell and the nucleus. The farther you go down the more reactive the metal is. Lithi! um, sodium, and potassium quite a little be employ in class experiments, as they dont have truly strong reactions. But, rubidium, caesium, and francium are as well as strong to be used in classes, because they are explosive, dangerous, and can cause a lot of damage if used inwardly or compensate outside a lab. They can in like manner be used as explosives, and francium is also radioactive. why are more metals more...If you want to get a full essay, order it on our website: BestEssayCheap.com

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