Tjis essay explains the evolution of the atomic theory and how it has changed over the last cenutry or so.

The atomic scheme has changed much since John Daltons time. In the advanced cardinal hundreds John Dalton first discover that elements combine in specific proportions because they atomic number 18 do of single(a) atoms. For example, hydrogen and chlorine always combine in a specific proportion to create hydrochloric acid. Dalton thought that atoms were subatomic particles, manage a small marble. Daltons atomic possible action consisted of 3 parts. They were: *All sum totals are made of atoms. Atoms are small particles that raftnot be created, divided, or destroyed. *Atoms of the same substance are incisively alike, atoms of different atoms are different. *Atoms join with separate atoms of other substances to compel sweet substances. Daltons scheme was proved wrong when new grooming was discovered and Daltons theory could not explain it. The atomic theory has evolved. In 1897, a scientist named J.J. Thompson found and identified a paradox in Daltons theory. He di scovered that there were particles internal the atom. So, Thompson said, atoms can be divided into even smaller parts. The particles that were found inside the atom had a negative force. The negatively super supercharged particles were called electrons. Scientists had already found out that atoms had no overall charge. Thompson didnt make out the location of the dictatorially charged material so he made a theory that the negatively charged electrons were implant in the atom which was made of overall positive matter. Thompsons fabric was called the plum-pudding model. The electrons looked like plums that were in the pudding . In 1909, a unfearing named Ernest Rutheford, a former(prenominal) student of Thompson wishinged to investigate his former teachers theory. He aimed a small beam of radium particles at a slate end of thin gold foil.

He thought if atoms were scarce fragile blobs embedded with electrons like Thompson had suggested then the beam of... Your experiment was decent; however, it left much to be desired. You could begin by decision common threads that strongly link the theories together, and providing whatsoever information on how the uncovering was made along with scientific / numerical reasoning. In addition, your conclusion left the whole national coarse; whereas, it should have summed up your essay, without leaving questions about the subject area itself dangling there. Though it should produce a desire to fit much about the topic within the reader, it should not give questions that do no merit (ie. how c lose are they to discovery?). If you want to get a full essay, order it on our website: OrderCustomPaper.com

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