Rutherford scattering - Study guides, Class notes & Summaries

Chapter 1—Living in a World of Chemistry MULTIPLE CHOICE 1. Which activity comes first in the scientific method? a. conclusion b. hypothesis c. experimentation d. observation ANS: D 2. Which is considered a physical science? a. physics b. biology c. zoology d. botany ANS: A 3. A scientist is trying to make a new insecticide that will be more toxic to flies, but less toxic to humans than insecticides now available. The scientist is engaged in a. basic research. b. applied research. ...

Ancient greek model of the atom Atoms are tiny solid spheres which cannot be divided. JJ Thompson Discovered the electron and developed the "plum-pudding" model of the atom plum pudding model of the atom atoms are balls of positively charge with negative electrons embedded in it Rutherford, Geiger, and Marsden carried out the alpha particle scattering experiment and developed the nuclear model of the atom Alpha particle scattering experiment Fired alpha particles at a thin sheet of go...

AQA GCSE Chemistry - History of the Atom 1. What is the term used to describe the number of protons present in an atom? Answer: The atomic number. 2. What is the number of electrons in an atom related to? Answer: The number of protons. 3. How do you calculate the number of neutrons in an atom? Answer: By subtracting the atomic number from the atomic mass number. 4. Who described atoms as solid spheres in the 19th century? Answer: John Dalton. 5. What discovery by JJ Thomson led...

CHAPTER 3: Chemical Foundations: Elements, Atoms, and Ions 1. What is the most abundant element on the Earth (including the crust, oceans, and atmosphere)? A. silicon B. oxygen C. hydrogen D. iron E. carbon ANS: B PTS: 1 TOP: Test: Chapter Test NOT: worldofchem_2013 2. What is the most abundant element found in the human body? A. oxygen B. water C. hydrogen D. calcium E. carbon ANS: A PTS: 1 TOP: Test: Chapter Test NOT: worldofchem_2013 3. The symb...

Chapter 01: Introduction 1. A tentative explanation for a set of observations that can be tested by further experimentation is referred to as A) a hypothesis. B) a law. C) a theory. D) none of the above. Ans: A Category: Easy Section: 1.2 2. A concise verbal or mathematical statement of a relationship between phenomena that is always the same under the same conditions is referred to as A) a hypothesis. B) a law. C) a theory. D) none of the above. Ans: B Category: Easy Section: 1.2 3. A un...

Chapter 3—Atoms and the Periodic Table MULTIPLE CHOICE 1. Which combination of individual and contribution is not correct? a. Antoine Lavoisier - clarified confusion over cause of burning b. John Dalton - proposed atomic theory c. Marie Curie - discovered radium and polonium d. Robert Millikan - discovered the neutron ANS: D 2. John Dalton did his research work in which of the following countries? a. France b. Greece c. Russia d. England ANS: D 3. Which radiation type has no detect...

LRA 211 Final Review Study Guide Elaborated A filament electron removes a K shell electron and an M shell electron fills the vacancy. The K shell binding energy is 69.5 keV and the M shell binding energy is 2.8 keV. What is the energy of the K-characteristic photon produced? - 66.7 keV A radiographic image that is too light has ________________ to visualize the anatomic structures. - excessive brightness An increase in the image size of an object compared with its true, or actua...

Rutherford Alpha particles scattering experiment -Experiment arrangement, Observation, Explanation, Conclusion.Rutherford's atom model.Drawbacks of Rutherford 's Atom model. Electric orbits.Bohr's model of Hydrogen atom.Expression for orbital velocity of Electron.Expression for Radius of the orbit . Expression for total energy of electron.Bohrs theory of Hydrogen spectra. Line spectra of hydrogen - Explanation based on Bohr's theory. Energy level diagram of hydrogen atom.

Chapter 2: Atoms, Molecules, and IonsIn a cathode ray tube A) electrons pass from the anode to the cathode. B) electrons pass from the cathode to the anode. C) protons pass from the anode to the cathode. D) protons pass from the cathode to the anodeThe scientist who determined the magnitude of the electric charge of the electron was A) John Dalton. D) Henry Moseley. B) Robert Millikan. E) R. Chang. C) J. J. ThomsonWhen J. J. Thomson discovered the electron, what physical property of the electron...

Discovery of protons, neutrons , electrons , goldfoil alpha particle scattering experiment, arrangement of electrons in atom, discrimination of nucleus, protons and atomic number , jj Thomson atom model , Bohr s atom model , Rutherford model , Goldstein model , drawback of all atoms , distribution of all electrons in all shells , meaning of p =n , p=n=z , mass number , observation of all models , conclusion of all models , Bohr and bury