History overthrow religion since it was a very big

History of the Atom WebquestYou are to do online research about the various models of the atom that helped bring us to today’s understanding. Four scientists who made important contributions to this endeavor were Dalton, Thomson, Rutherford, and Bohr. Concerning each of these scientists, answer each of the following in full sentences, using paragraphs where appropriate. John Dalton:When and where did the scientist live?John Dalton was born in the late 1700s — 1766 to be specific — in England.What was believed at the time the scientist lived, before the scientist made their discovery?The 18th century (the 1700s) was also known as the Age of Enlightenment which started shortly after the Scientific Revolution. During this time people tried to use science to overthrow religion since it was a very big part of everyday life. What idea did the scientist put forth that changed how we view the atom?Dalton introduced a theory that proposed that elements differed due to the mass of their atoms. Which then led him to the discovery that: all matter is made of atoms, atoms are indivisible and indestructible, and compounds are formed by a combination of two or more different kinds of atoms, which is now known as Dalton’s atomic theory.What did the scientist base his theory on?Dalton based his theory on on the law of conservation of mass and the law of constant composition.What is correct and incorrect about this scientist’s view of the atom?Some things incorrect about Dalton’s theory is that he stated that atoms were invisible, however this was proved wrong. They can be subdivided into protons, neutrons, and electrons. He also stated that “the atoms of same element are similar in all ways. However, atoms vary in mass and densities.” Furthermore, Dalton claimed that atoms of different elements are different in all ways. However, this was proven wrong for example: argon and calcium atoms both have an atomic mass of 40 amu. Some things that were correct is that his theory explains the laws of chemical combination. He was also the first person to recognize a distinction between an atom and a compound molecule.J. J. ThomsonWhen and where did the scientist live?J. J. Thomson was born in the mid 1800s (1856) in England. What was believed at the time the scientist lived, before the scientist made their discovery?It was believed that an atom could not be subdivided and it was only the bare atom. What idea did the scientist put forth that changed how we view the atom?Thomson put forth the idea that all matter is made up of tiny particles that are much smaller than atoms. They are now called electrons. He also discovered that neon was composed of two different kind of atoms, and therefore proved the existence of isotopes in a stable element. What did the scientist base his theory on?He based his theory on Dalton’s Atomic Theory. What is correct and incorrect about this scientist’s view of the atom?Incorrect: Thomson assumed that the positive charge of an atom was uniform with the electrons moving inside the nucleus. This was proven wrong by Rutherford who claimed the distribution of positive and negative particles was not uniform.Correct: Thomson stated that atoms have protons, neutrons and are neutrally charged. Ernest RutherfordWhen and where did the scientist live?Ernest Rutherford was born in the late 1800’s (1871) in New Zealand.What was believed at the time the scientist lived, before the scientist made their discovery?It was believed that the positive charge of an atom was uniforn with the electrons moving inside of the nucleus in orbits. What idea did the scientist put forth that changed how we view the atom?Rutherford discovered that Thomson’s model was incorrect and the distribution of positive and negative particles was not uniform. He showed that the atom contains a small, massive, positively charged nucleus surrounded by negative electrons to balance out the atom. Which then led him to alter thomson’s atomic structure. What did the scientist base his theory on?He based his theory on Thomson’s Plum Pudding Model.What is correct and incorrect about this scientist’s view of the atom?Correct: Incorrect: Rutherford’s model did not account for the properties of electrons. The atoms seemed too stable. Niels BohrWhen and where did the scientist live?Niels Bohr was also born in the late 1800’s (1885) in Denmark.What was believed at the time the scientist lived, before the scientist made their discovery?It was believed that the atom contained a small, massive, positively charged nucleus surrounded by negative electrons to balance out the atom. What idea did the scientist put forth that changed how we view the atom?Bohr put forth his model of atomic structure, known as the Bohr model, which depicts the atom as a small, positively-charged nucleus surrounded by negatively-charged electrons that travel in circular orbits around the nucleus. What did the scientist base his theory on?What is correct and incorrect about this scientist’s view of the atom?20 points total.