electron configuration

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Hund's rule of maximum multiplicity

electron

Aufbau principle

Bohr model

Chapter 6: The Periodic Table & Atomic Structure Section 6.2: The Electromagnetic Spectrum Monday, September 15, 2014 3:06 PM Visible Light - portion of electromagnetic spectrum that we can see, typically with wavelengths between 400 / 700 nanometers ? Electromagnetic Spectrum - various forms of light, consisting of oscillating electric and magnetic fields ? ? ? The Wave Nature of Light ? Wavelength - distance between corresponding points on a wave Amplitude - height of the wave from equilibrium position Frequency - number of cycles of a wave passing a certain point per second (measured in Hz) **note: amplitude corresponds with brightness, wavelength and frequency correspond with color ? Speed of light ( c ) : c = lamda x v = wavelength x frequency ? The Particulate Nature of Light

Chapter 8

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Chemistry 1210: Introduction to General Chemistry Dr. Gina M. Florio 05 November 2012 Jespersen, Brady & Hyslop Chapter 8 The Quantum Mechanical Atom Quantum Mechanics Ch. 8.1 The physics that describes objects with wave-particle duality is called quantum mechanics or quantum theory. In the late 1800?s, scientists discovered that electrons acted like tiny charged particles in some experiments and waves in others. Quantum mechanics accurately describes the structure and reactivity of atoms and molecules. Electromagnetic Radiation Ch. 8.1 Energy can be transferred as heat or as light. Electromagnetic radiation can be carried energy through space in the form of electromagnetic waves.

Bob Jones PPT Notes -- Chapter 4b

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Theoretical chemistry

Block

The Electron Structure of the Atom The quantum model emphasizes the wave nature of electrons. The Quantum Model Quantum numbers are solutions to the wave equations of electrons. Scientists use a set of 4 quantum numbers to determine an electron?s location around an atom. Quantum Numbers Electrons exist in principal energy levels that correspond to Bohr?s orbits: 1, 2, 3, 4, 5, ? Principal energy levels are divided into 4 types of sublevels: s, p, d, and f. Where are the Electrons? The sublevels contain orbitals. Each orbital can hold up to two electrons. Where are the Electrons? Identifies the principal energy level Correlates to Bohr?s orbits n = 1, 2, 3, 4, 5, 6, or 7 for the ground state e?. The total number of e? in a level is 2n2. Principal Quantum Number (n) Level Total # e? 1

Chemistry The central science Summary Chapter 6

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Theoretical chemistry

Atomic orbital

Hot Objects and the Quantization of Energy Heated solids emit radiation (blackbody radiation) The wavelength distribution depends on the temperature (i.e., ?red hot? objects are cooler than ?white hot? objects). In 1900 Max Planck solved the problem He investigated black body radiation. He proposed that energy can only be absorbed or released from atoms in ?chucks? of some minimum size . These amounts are called quanta. A quantum (meaning ?fixed amount?) is the smallest amount of energy that can be emitted or absorbed as electromagnetic radiation. The relationship between energy and frequency is: . The Photoelectric Effect and Photons The photoelectric effect provides evidence for the particle nature of light and for quantization.

Chapter 8 Solutions

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Periodic Properties of the Elements Review Questions 8.1 A periodic property is one that is predictable based on the element's position within the periodic table. 8.2 The relative size of the sodium and potassium ions is important to nerve signal transmission. The pumps and channels within cell membranes are so sensitive that they can distinguish between the sizes of these two ions and selectively allow only one or the other to pass. The movement of ions is the basis for the transmission of nerve signals in the brain and throughout the body. 8.3 The first attempt to organize the elements according to similarities in their properties was made by the German chemist Johann Dobereiner. He grouped elements into triads; three ele-

Chapter 8 Test Banks

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Valence electron

Effective nuclear charge

Paramagnetism

Quantum number

Technology

? Chemistry: A Molecular Approach (Tro) ? Chapter 8 ?? Periodic Properties of the Elements ? 1) ?? Give the ground state electron configuration for Se. ? A) ?? [Ar]4s23d104p4 ? B) ?? [Ar]4s24d104p4 ? C) ?? [Ar]4s23d104p6 ? D) ?? [Ar]4s23d10 ? E) ?? [Ar]3d104p4 ? Answer: ?? A ? 2) ?? Give the ground state electron configuration for I. ? A) ?? [Kr]5s24d105p6 ? B) ?? [Kr]5s24d105p5 ? C) ?? [Kr]4d105p6 ? D) ?? [Kr]5s25p6 ? E) ?? [Kr]5s25d105p6 ? Answer: ?? B ? 3) ?? Give the ground state electron configuration for Sr. ? A) ?? [Kr]5s24d2 ? B) ?? [Kr]5s24d105p2 ? C) ?? [Kr]5s2 ? D) ?? [Kr]5s25d105p2 ? E) ?? [Kr]5s24d10 ? Answer: ?? C ? 4) ?? Give the ground state electron configuration for Pb. ? A) ?? [Xe]6s26p2 ? B) ?? [Xe]6s25d106p2 ? C) ?? [Xe]6s25f146d106p2 ? D) ??

Arrangement of Electrons in Atoms Vocabulary Terms

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Condensed matter physics

Matter

Leptons

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