Unequal sharing results when there is significant difference in electronegativities. The more electronegative atom(s) draws bond electrons closer, leaving the less electronegaâ¦tive atom(s) slighty positive. The result of unequal sharing of electrons is the formation of polar bonds. I'm an undergraduate in Physical Sciences stream.
By 1831 cholera had arrived in Hamburg, and the first case in England was reported in October 1831 in Sunderland. The first case in East London was on 12 February, 1832.For all the fear attached to this new disease, only about 800 persons died of cholera in the East End.n the summer of 1831, after news had reached England that a cholera epidemic had arrived in the Baltic ports, Charles Greville said in his Memoirs [ chapter 15 ].
He published his ideas in an essay 'On the Mode of Communication of Cholera' in 1849. A few years later, Snow was able to prove his theory in dramatic circumstances. In August 1854, a cholera outbreak occurred in Soho. After careful investigation, including plotting cases of cholera on a map of the area, Snow was able to identify a water pump in Broad (now Broadwick) Street as the source of the disease.