Notes - Ch 2
... 1. qualitative…what does it contain, and 2. quantitative…how much of everything does it contain B) Stoichiometry – composition stoichiometry (this chapter) and reaction stoichiometry (ch 3) 2-1 Atoms and Molecules A) Aristotle v Democritus 1. Early scientists – philosophers/thinkers – NOT experiment ...
... 1. qualitative…what does it contain, and 2. quantitative…how much of everything does it contain B) Stoichiometry – composition stoichiometry (this chapter) and reaction stoichiometry (ch 3) 2-1 Atoms and Molecules A) Aristotle v Democritus 1. Early scientists – philosophers/thinkers – NOT experiment ...
Baby-Quiz
... don’t all the photoelectrons have the same kinetic energy when they leave the metal’s surface? 4. What property of the emitted electrons depends on the intensity of incident light?What property of the emitted photoelectrons depends on the frequency of incident light? ...
... don’t all the photoelectrons have the same kinetic energy when they leave the metal’s surface? 4. What property of the emitted electrons depends on the intensity of incident light?What property of the emitted photoelectrons depends on the frequency of incident light? ...
wave function
... charged alpha particles hit and are scattered from a thin foil target Large deflections could not be explained by Thomson’s model ...
... charged alpha particles hit and are scattered from a thin foil target Large deflections could not be explained by Thomson’s model ...
HW / Unit 2
... 1. Classify each of the following statements as true or false. a. The physical properties of Ti are expected to be intermediate between those of Sc and V. b. The formula of the chloride of Ti is expected to be the same as those of Sc and V. c. The formula of the oxide of Ti is expected to be the sam ...
... 1. Classify each of the following statements as true or false. a. The physical properties of Ti are expected to be intermediate between those of Sc and V. b. The formula of the chloride of Ti is expected to be the same as those of Sc and V. c. The formula of the oxide of Ti is expected to be the sam ...
AP Chemistry
... What is the energy in joules of a mole of photons associated with visible light of wavelength 550 nm? ...
... What is the energy in joules of a mole of photons associated with visible light of wavelength 550 nm? ...
Honors Chemistry
... 2. Explain the relationship between quantum of energy and Planck’s constant. Be sure to include the equation for energy in your discussion. ...
... 2. Explain the relationship between quantum of energy and Planck’s constant. Be sure to include the equation for energy in your discussion. ...
Elements
... Generic form – referring to the atoms of element in various forms and combinations (e.g. the human body contains a lot of the element Oxygen) ...
... Generic form – referring to the atoms of element in various forms and combinations (e.g. the human body contains a lot of the element Oxygen) ...
Constructive Interference
... exist in stable configurations around nuclei Wavefunctions and energies for these configurations determine most properties of matter ...
... exist in stable configurations around nuclei Wavefunctions and energies for these configurations determine most properties of matter ...
Basic Chemistry notes
... ______________________—two or more like atoms combined chemically ______________________—two or more different atoms combined chemically ...
... ______________________—two or more like atoms combined chemically ______________________—two or more different atoms combined chemically ...
Chem 150 Problem Set Introductory Quantum Chemistry 1
... Calculate the de Broglie wavelength of a muon, a subatomic particle that decays within a few nanoseconds after formation traveling with a velocity of 8.85 x 10 5 cm s-1. The resting mass of a muon is 206.8 electron masses. ...
... Calculate the de Broglie wavelength of a muon, a subatomic particle that decays within a few nanoseconds after formation traveling with a velocity of 8.85 x 10 5 cm s-1. The resting mass of a muon is 206.8 electron masses. ...
Part a
... Chemical energy—stored in bonds of chemical substances Electrical energy—results from movement of charged particles Mechanical energy—directly involved in moving matter Radiant or electromagnetic energy—exhibits wavelike properties (i.e., visible light, ultraviolet light, and X-rays) ...
... Chemical energy—stored in bonds of chemical substances Electrical energy—results from movement of charged particles Mechanical energy—directly involved in moving matter Radiant or electromagnetic energy—exhibits wavelike properties (i.e., visible light, ultraviolet light, and X-rays) ...
Chem 1411 Chapt2
... 4. Compounds are formed when atoms of more than one type of element combine. Law of Multiple Proportions- If two substances are made of the same types of elements, but the elements are in different proportions, then the two substances are different. Example: NO, NO2, N2O, H2O, H2O2 Law of Constant C ...
... 4. Compounds are formed when atoms of more than one type of element combine. Law of Multiple Proportions- If two substances are made of the same types of elements, but the elements are in different proportions, then the two substances are different. Example: NO, NO2, N2O, H2O, H2O2 Law of Constant C ...
CH160: Professor Peter Sadler Introduction to inorganic chemistry
... (which is specific to the surface of the material), the photons are absorbed and current is produced 1905 Albert Einstein's mathematical description in 1905 of how the photoelectric effect was caused by absorption of quanta of light (now called photons) 1909 Geiger-Marsden Rutherford experiment : go ...
... (which is specific to the surface of the material), the photons are absorbed and current is produced 1905 Albert Einstein's mathematical description in 1905 of how the photoelectric effect was caused by absorption of quanta of light (now called photons) 1909 Geiger-Marsden Rutherford experiment : go ...
Miss Pang`s 2012 Review
... 20. Rutherford modified the atomic model after doing experiments where alpha particles were dispersed by a sheet of gold foil. Consider the following: ...
... 20. Rutherford modified the atomic model after doing experiments where alpha particles were dispersed by a sheet of gold foil. Consider the following: ...
10mod_phys
... – Used quantum theory, and atomic spectra to fix problems with the Rutherford model. Proposed: – An electron can only occupy certain allowed orbits without radiating – Each nth orbit has a radius (rn) and an energy (En). – An electron can make a transition between two orbits through • Absorbing a Ph ...
... – Used quantum theory, and atomic spectra to fix problems with the Rutherford model. Proposed: – An electron can only occupy certain allowed orbits without radiating – Each nth orbit has a radius (rn) and an energy (En). – An electron can make a transition between two orbits through • Absorbing a Ph ...
Atoms, Molecules and Ions
... 1. Atoms make up all matter. 2. The atoms of one element are different from the atoms of another element. 3. Atoms combine in definite ratios to make compounds. 4 Combinations of atoms in compounds can change ...
... 1. Atoms make up all matter. 2. The atoms of one element are different from the atoms of another element. 3. Atoms combine in definite ratios to make compounds. 4 Combinations of atoms in compounds can change ...
powerpoint
... A surface of metal illuminated by light ejects electrons. The kinetic energy of the electrons is proportional to the frequency of the impinging light. ...
... A surface of metal illuminated by light ejects electrons. The kinetic energy of the electrons is proportional to the frequency of the impinging light. ...
The Chemical Context of Life Chapter 2 Notes
... Element: a substance that cannot be broken down by chemical reactions Compound: substance consisting of two or more elements in a fixed ratio ...
... Element: a substance that cannot be broken down by chemical reactions Compound: substance consisting of two or more elements in a fixed ratio ...
Atomic theory
In chemistry and physics, atomic theory is a scientific theory of the nature of matter, which states that matter is composed of discrete units called atoms. It began as a philosophical concept in ancient Greece and entered the scientific mainstream in the early 19th century when discoveries in the field of chemistry showed that matter did indeed behave as if it were made up of atoms.The word atom comes from the Ancient Greek adjective atomos, meaning ""uncuttable"". 19th century chemists began using the term in connection with the growing number of irreducible chemical elements. While seemingly apropos, around the turn of the 20th century, through various experiments with electromagnetism and radioactivity, physicists discovered that the so-called ""uncuttable atom"" was actually a conglomerate of various subatomic particles (chiefly, electrons, protons and neutrons) which can exist separately from each other. In fact, in certain extreme environments, such as neutron stars, extreme temperature and pressure prevents atoms from existing at all. Since atoms were found to be divisible, physicists later invented the term ""elementary particles"" to describe the ""uncuttable"", though not indestructible, parts of an atom. The field of science which studies subatomic particles is particle physics, and it is in this field that physicists hope to discover the true fundamental nature of matter.