Chapter 5 Electrons in Atoms
... to move from one energy level to another. Since the energy of an atom is never “in between” there must be a quantum leap in energy. ...
... to move from one energy level to another. Since the energy of an atom is never “in between” there must be a quantum leap in energy. ...
IB Definitions
... The mass number is the total number of protons and neutrons in the nucleus of an atom The atomic number is equivalent to the number of protons in the nucleus of an atom Isotopes are atoms which have the same atomic number but different mass numbers (due to the presence of different numbers of neutro ...
... The mass number is the total number of protons and neutrons in the nucleus of an atom The atomic number is equivalent to the number of protons in the nucleus of an atom Isotopes are atoms which have the same atomic number but different mass numbers (due to the presence of different numbers of neutro ...
Quantum Theory of the Atom
... particle and a wave, we can start to understand the emission spectra of atoms. One in particular, hydrogen (shown below) The theory of Planck and Einstein states that there are only certain allowable energy levels or states. The lowest allowable state is called the ground state. ...
... particle and a wave, we can start to understand the emission spectra of atoms. One in particular, hydrogen (shown below) The theory of Planck and Einstein states that there are only certain allowable energy levels or states. The lowest allowable state is called the ground state. ...
Introduction to Nanoscience
... Fig. 1.5. An artist's impression of a nano-louse immunizing a single red blood cell. The details shown in this drawing are too small to be seen with visible light. Recognition at the nanometer scale is done by touch. Two molecules that react with each other will bump together in random orientations ...
... Fig. 1.5. An artist's impression of a nano-louse immunizing a single red blood cell. The details shown in this drawing are too small to be seen with visible light. Recognition at the nanometer scale is done by touch. Two molecules that react with each other will bump together in random orientations ...
2 is
... = 3 : ml = -3, -2, -1, 0, +1, +2, +3 ms = ½ , -½ 2 states l = 4 : ml = -4, -3, -2, -1, 0, +1, +2, +3, +4 ms = ½ , -½ 2 states ...
... = 3 : ml = -3, -2, -1, 0, +1, +2, +3 ms = ½ , -½ 2 states l = 4 : ml = -4, -3, -2, -1, 0, +1, +2, +3, +4 ms = ½ , -½ 2 states ...
02_Lecture_Presentation
... Van der Waals Interactions • If electrons are distributed asymmetrically in molecules or atoms, they can result in “hot spots” of positive or negative charge • Van der Waals interactions are attractions between molecules that are close together as a result of these charges ...
... Van der Waals Interactions • If electrons are distributed asymmetrically in molecules or atoms, they can result in “hot spots” of positive or negative charge • Van der Waals interactions are attractions between molecules that are close together as a result of these charges ...
Particle behaving as waves
... allows us to use electrons to make images (e.g. the viruses shown here on a bacterium). This picture is the output of an “electron microscope” Copyright © 2012 Pearson Education Inc. ...
... allows us to use electrons to make images (e.g. the viruses shown here on a bacterium). This picture is the output of an “electron microscope” Copyright © 2012 Pearson Education Inc. ...
16.12.2013 1 Chapter 6 The Periodic Table and Atomic Structure
... according to the type of orbital occupied by the highest energy electron in the ground state. • We find the element of interest in the periodic table and write its core electrons using the shorthand notation with the previous rare gas element. Then we determine the valence electrons by noting where ...
... according to the type of orbital occupied by the highest energy electron in the ground state. • We find the element of interest in the periodic table and write its core electrons using the shorthand notation with the previous rare gas element. Then we determine the valence electrons by noting where ...
Chapter 9: Intermolecular Attractions and the Properties
... Electrons behave as waves!! In order to “see” the position of an electron we must probe it with radiation which changes its position and/or velocity ...
... Electrons behave as waves!! In order to “see” the position of an electron we must probe it with radiation which changes its position and/or velocity ...
Ionization
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes. Ionization can result from the loss of an electron after collisions with sub atomic particles, collisions with other atoms, molecules and ions, or through the interaction with light. Heterolytic bond cleavage and heterolytic substitution reactions can result in the formation of ion pairs. Ionization can occur through radioactive decay by the internal conversion process, in which an excited nucleus transfers its energy to one of the inner-shell electrons causing it to be ejected.