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chemistry

CHEMISTRY IS SCIENCE THAT TAKE TO CHEMICAL EQUATION

Shreyan
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chemistry

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  1. NAMEShreyan Ray ChoudhuryCLASSVII-B ROLL NO.24TOPICATOMIC STRUCTURE OF RUTHERFORD.

  2. Introduction Ernest Rutherford, in full Ernest, Baron Rutherford of Nelson, (born August 30, 1871, Spring Grove, New Zealand—died October 19, 1937, Cambridge, Cambridgeshire, England), New Zealand-born British physicist considered the greatest experimentalist since Michael Faraday (1791–1867). Rutherford was the central figure in the study of,  radioactivityand with his concept of the nuclear atom he led the exploration of nuclear physics. He won the Nobel Prize for Chemistry in 1908, was president of the Royal Society (1925–30) and the British Association for the Advancement of Science (1923), was conferred the Order of Merit in 1925, and was raised to the peerage as Lord Rutherford of Nelson in 1931 Ernest Rutherford

  3. RutherfordGold Foil Experiment Rutherford, Geiger, and Marsden study the scattering experiment model in physics and chemistry and beam of alpha particle obtained from spontaneously radioactive decay of polonium isotopes directed to very thin platinum or gold foil. The direction of motion of α-particles after emerging from the thin metal sheets traced on a fluorescent screen.

  4. OBSERVATION Observations of Rutherford’s Alpha Scattering Experiment The observations made by Rutherford led him to conclude that: A major fraction of the α-particles bombarded towards the gold sheet passed through it without any deflection, and hence most of the space in an atom is empty. Some of the α-particles were deflected by the gold sheet by very small angles, and hence the positive charge in an atom is not uniformly distributed. The positive charge in an atom is concentrated in a very small volume. Very few of the α-particles were deflected back, that is only a few α-particles had nearly 180o angle of deflection. So the volume occupied by the positively charged particles in an atom is very small as compared to the total volume of an atom.

  5. Modelofatomicstructure The atom, as described by Ernest Rutherford, has a tiny, massive core called the nucleus. The nucleus has a positive charge. Electrons are particles with a negative charge. Electrons orbit the nucleus. The empty space between the nucleus and the electrons takes up most of the volume of the atom.

  6. Conclusion As a result of his observations Rutherford suggested that the atom has a positively charged center which contained most of the mass. He called the heavy positively charged centre as the nucleus. He went on to suggest that the nucleus was surrounded by orbiting electrons required for electrical neutrality. NUCLIOUS PROTON ELECTRON

  7. SUBATOMICARE Electrons are a type of subatomic particle with a negative charge. Protons are a type of subatomic particle with a positive charge. Protons are bound together in an atom's nucleus as a result of the strong nuclear force. Neutrons are a type of subatomic particle with no charge (they are neutral)

  8. Electron, lightest stable subatomic particle known. It carries a negative charge of 1.602176634 × 10−19 coulomb, which is considered the basic unit of electric charge. The rest mass of the electron is 9.10 93837015 × 10−31 kg, which is only 1/1,836the mass of a proton. An electron is therefore considered nearly massless in comparison with a proton or a neutron, and the electron mass is not included in calculating the mass number of an atom. Neutron, neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen. It has no electric charge and a rest mass equal to 1.67493 × 10−27 kg—marginally greater than that of the proton but nearly 1,839 times greater than that of the electron. Neutrons and protons, commonly called nucleons, are bound together in the dense inner core of an atom, the nucleus, where they account for 99.9 percent of the atom’s mass. Proton, stable subatomic particle that has a positive charge equal in magnitude to a unit of electron charge and a rest mass of 1.67262 × 10−27 kg, which is 1,836 times the mass of an electron.

  9. Acknowledgement I would like to express thanks and gratitude to my chemistry teacher Who gave me wonderful project topic was ATOMIC STRUCTURE OF RUTHERFORD it help me to about many new fact about this topic. I would also thank my parent who help me doing this

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