Atomic Structure MC Review_ corrected
... Atomic Structure and Electron Configurations Multiple Choice PSI Chemistry Name:________________________ 1. Rutherford’s Nuclear Model of the atom A. is the currently accepted atomic model. B. explains the unique emission spectra of different elements. C. does not account for the stability of most a ...
... Atomic Structure and Electron Configurations Multiple Choice PSI Chemistry Name:________________________ 1. Rutherford’s Nuclear Model of the atom A. is the currently accepted atomic model. B. explains the unique emission spectra of different elements. C. does not account for the stability of most a ...
Regents_Chem_Core_for_review
... V.3 A pure substance (element or compound) has a constant composition and constant properties throughout a given sample, and from sample to sample. (3.1r) V.4 Elements are substances that are composed of atoms that have the same atomic number. Elements cannot be broken down by chemical change. (3.1u ...
... V.3 A pure substance (element or compound) has a constant composition and constant properties throughout a given sample, and from sample to sample. (3.1r) V.4 Elements are substances that are composed of atoms that have the same atomic number. Elements cannot be broken down by chemical change. (3.1u ...
Bohr model and electron configuration
... The higher the energy level, the further it is away from the nucleus An atom with maximum number of electrons in the outermost orbital energy level is stable (unreactive) ...
... The higher the energy level, the further it is away from the nucleus An atom with maximum number of electrons in the outermost orbital energy level is stable (unreactive) ...
Aps midREVIEW
... D. larger and contains little of the atom’s mass 23. The atomic number of any atom is equal to the number of A. neutrons in the atom, only B. protons in the atom, only C. neutrons plus protons in the atoms D. protons plus electrons in the atom 24. What is the correct formula for iron (II) b ...
... D. larger and contains little of the atom’s mass 23. The atomic number of any atom is equal to the number of A. neutrons in the atom, only B. protons in the atom, only C. neutrons plus protons in the atoms D. protons plus electrons in the atom 24. What is the correct formula for iron (II) b ...
Heat Capacity 16
... interact with each other oscillators are thought to vibrate interdependently. Einstein model considered only one frequency of vibration D. When interactions between the atoms occur, many more frequencies are thought to exist, which range from about the Einstein frequency down to the acoustical mo ...
... interact with each other oscillators are thought to vibrate interdependently. Einstein model considered only one frequency of vibration D. When interactions between the atoms occur, many more frequencies are thought to exist, which range from about the Einstein frequency down to the acoustical mo ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 17. Ψ = (2a/π)1/4 exp(-ax2) is an eigen function of the Hamiltonian operator for the 1D SHO. Find the eigenvalue E and express it in terms of the classical frequency ν, where ν = (1/2π)√(k/m) and the constant a = (π/h)√(km). 18. What is an atomic term symbol? Write the term symbols for the excited ...
... 17. Ψ = (2a/π)1/4 exp(-ax2) is an eigen function of the Hamiltonian operator for the 1D SHO. Find the eigenvalue E and express it in terms of the classical frequency ν, where ν = (1/2π)√(k/m) and the constant a = (π/h)√(km). 18. What is an atomic term symbol? Write the term symbols for the excited ...
PPT - kimscience.com
... Line spectrum - can be used to identify an element – it is a characteristic property of that element. Examples of practical use: determine the chemical make-up of the stars and plants’ atmospheres. FIREWORKS! SIMILAR CONCEPT TO OUR FLAME TEST Different metal will burn different colors. -What meta ...
... Line spectrum - can be used to identify an element – it is a characteristic property of that element. Examples of practical use: determine the chemical make-up of the stars and plants’ atmospheres. FIREWORKS! SIMILAR CONCEPT TO OUR FLAME TEST Different metal will burn different colors. -What meta ...
Chapter 27: Summary
... behavior of such particles is very different from the behavior of everyday objects. Among other things, these tiny objects exhibit both a wave nature and a particle nature. Black body radiation Black body radiation is the radiation, in the form of electromagnetic waves, which emanates from a warm ob ...
... behavior of such particles is very different from the behavior of everyday objects. Among other things, these tiny objects exhibit both a wave nature and a particle nature. Black body radiation Black body radiation is the radiation, in the form of electromagnetic waves, which emanates from a warm ob ...
CHAPTER 10 - NUCLEAR PHYSICS
... An atom of calcium has 2 valence electrons. An atom of chlorine has only 1 space(7 valence electrons). So it takes two chlorine atoms to accommodate the two valence electrons in calcium. The formula is CaCl2. When writing formulas for most ionic and covalent binary compounds, use the criss-cross met ...
... An atom of calcium has 2 valence electrons. An atom of chlorine has only 1 space(7 valence electrons). So it takes two chlorine atoms to accommodate the two valence electrons in calcium. The formula is CaCl2. When writing formulas for most ionic and covalent binary compounds, use the criss-cross met ...
AP B - Unit 11 - 2013
... - is called the work function of the metal which represents the minimum energy with which an electron is bound in the metal (on the order of a few eV) - with the photon theory of light, we can explain the previously mentioned features of the photoelectric effect that cannot be understood using conc ...
... - is called the work function of the metal which represents the minimum energy with which an electron is bound in the metal (on the order of a few eV) - with the photon theory of light, we can explain the previously mentioned features of the photoelectric effect that cannot be understood using conc ...
2015-2016 AP CHEMISTRY MIDTERM EXAM Review
... 30. Explains the experimental phenomenon of electron diffraction 31. Indicates that an atomic orbital can hold no more than two electrons 32. Predicts that it is impossible to determine simultaneously the exact position and the exact velocity of an electron Questions 33-35 refer to the phase diagram ...
... 30. Explains the experimental phenomenon of electron diffraction 31. Indicates that an atomic orbital can hold no more than two electrons 32. Predicts that it is impossible to determine simultaneously the exact position and the exact velocity of an electron Questions 33-35 refer to the phase diagram ...
chapter 7: atomic structure and periodicity
... Wavelength (λ) - ____________________ between 2 successive crests or troughs Frequency (ν) - the number of _____________ (cycles) per second that pass a certain point. (unit: Speed (c) – speed of light = _______________________________ ...
... Wavelength (λ) - ____________________ between 2 successive crests or troughs Frequency (ν) - the number of _____________ (cycles) per second that pass a certain point. (unit: Speed (c) – speed of light = _______________________________ ...
X-ray photoelectron spectroscopy
X-ray photoelectron spectroscopy (XPS) is a surface-sensitive quantitative spectroscopic technique that measures the elemental composition at the parts per thousand range, empirical formula, chemical state and electronic state of the elements that exist within a material. XPS spectra are obtained by irradiating a material with a beam of X-rays while simultaneously measuring the kinetic energy and number of electrons that escape from the top 0 to 10 nm of the material being analyzed. XPS requires high vacuum (P ~ 10−8 millibar) or ultra-high vacuum (UHV; P < 10−9 millibar) conditions, although a current area of development is ambient-pressure XPS, in which samples are analyzed at pressures of a few tens of millibar.XPS is a surface chemical analysis technique that can be used to analyze the surface chemistry of a material in its as-received state, or after some treatment, for example: fracturing, cutting or scraping in air or UHV to expose the bulk chemistry, ion beam etching to clean off some or all of the surface contamination (with mild ion etching) or to intentionally expose deeper layers of the sample (with more extensive ion etching) in depth-profiling XPS, exposure to heat to study the changes due to heating, exposure to reactive gases or solutions, exposure to ion beam implant, exposure to ultraviolet light.XPS is also known as ESCA (Electron Spectroscopy for Chemical Analysis), an abbreviation introduced by Kai Siegbahn's research group to emphasize the chemical (rather than merely elemental) information that the technique provides.In principle XPS detects all elements. In practice, using typical laboratory-scale X-ray sources, XPS detects all elements with an atomic number (Z) of 3 (lithium) and above. It cannot easily detect hydrogen (Z = 1) or helium (Z = 2).Detection limits for most of the elements (on a modern instrument) are in the parts per thousand range. Detection limits of parts per million (ppm) are possible, but require special conditions: concentration at top surface or very long collection time (overnight).XPS is routinely used to analyze inorganic compounds, metal alloys, semiconductors, polymers, elements, catalysts, glasses, ceramics, paints, papers, inks, woods, plant parts, make-up, teeth, bones, medical implants, bio-materials, viscous oils, glues, ion-modified materials and many others.XPS is less routinely used to analyze the hydrated forms of some of the above materials by freezing the samples in their hydrated state in an ultra pure environment, and allowing or causing multilayers of ice to sublime away prior to analysis. Such hydrated XPS analysis allows hydrated sample structures, which may be different from vacuum-dehydrated sample structures, to be studied in their more relevant as-used hydrated structure. Many bio-materials such as hydrogels are examples of such samples.