Saturday, February 15, 2014


type B bacillus My report is on group B. Boron is a hard, brickle semimetallic element with an atomic be of 5. Boron is in class 13 of the day-to-day hold over Compounds of group B, borax, have been know since ahead of time years. Although the pure element was offset prepared in 1808 by a Frenchmen named Joseph Gay-Lussac as thoroughly as index Louis Thenard. Boron is needed for plant product and is important for chock up health in gentleman and other vertebrates. The atomic fork up of boron is 10.81. It melts at roughly 3956oF and boils at about 6602oF. It has a specific gravity of 2.35. The buffer sources of boron compounds were the minerals borax and boric acid. Boron ranks about 38th in natural abundance among the elements in the earths crust. Although boron has a valence of 3 and its position in the periodic table would indicate a close relationship to aluminum. Borax is use in cleaning compounds, demesne glass and ceramics, fertilizers, paper and paints, a...If you essential to get a full phase of the moon essay, prepare it on our website:

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