Unit 10 – The Mole
... A mole is a counting number. One mole is a specific number of atoms, molecules, or formula units. A mole is ALWAYS ____________________________. This number was discovered by a scientist named ____________________________. So we chemists call this number Avogadro’s Number. ...
... A mole is a counting number. One mole is a specific number of atoms, molecules, or formula units. A mole is ALWAYS ____________________________. This number was discovered by a scientist named ____________________________. So we chemists call this number Avogadro’s Number. ...
“We choose to examine a phenomenon which is impossible
... The important results from last time: Quantum mechanical entities can exhibit either wave-like or particle-like properties, depending on what one measures. We saw this phenomenon for photons, and claimed that it is also true for matter (e.g., electrons). The wave and particle properties are related ...
... The important results from last time: Quantum mechanical entities can exhibit either wave-like or particle-like properties, depending on what one measures. We saw this phenomenon for photons, and claimed that it is also true for matter (e.g., electrons). The wave and particle properties are related ...
29.2 Chemical Bonds
... Molecules of the chemical benzene have six carbon atoms and six hydrogen atoms shaped in a ring. An atom can make one chemical bond for each valence electron. Bonds can also involve two or more valence electrons. ...
... Molecules of the chemical benzene have six carbon atoms and six hydrogen atoms shaped in a ring. An atom can make one chemical bond for each valence electron. Bonds can also involve two or more valence electrons. ...
Document
... Molecules of the chemical benzene have six carbon atoms and six hydrogen atoms shaped in a ring. An atom can make one chemical bond for each valence electron. Bonds can also involve two or more valence electrons. ...
... Molecules of the chemical benzene have six carbon atoms and six hydrogen atoms shaped in a ring. An atom can make one chemical bond for each valence electron. Bonds can also involve two or more valence electrons. ...
Naming Chemical Compounds
... Sodium is in group 1 so its oxidation number is 1+. Phosphide is short for phosphorus. Its oxidation number must be negative since it’s the 2nd name so phosphide has a charge of 3-. If the total charge is going to add Na1+ P3up to zero 3 Na1+ and 1 P3- must be ...
... Sodium is in group 1 so its oxidation number is 1+. Phosphide is short for phosphorus. Its oxidation number must be negative since it’s the 2nd name so phosphide has a charge of 3-. If the total charge is going to add Na1+ P3up to zero 3 Na1+ and 1 P3- must be ...
Physiological Homeostasis means
... synthetic routes, with no more than three steps, from a given reactant to a final product. Learners should be able to look at molecular structures and deduce the reactions it can undergo. ...
... synthetic routes, with no more than three steps, from a given reactant to a final product. Learners should be able to look at molecular structures and deduce the reactions it can undergo. ...
n= n= n=1
... bound electron of B is in the n = 2 (L) shell. Our value neglects screening effects from low lying electrons. 4. When the spin-orbit interaction is taken into account, it is sometimes said that ml and ms are no longer “good quantum numbers.” Explain why this terminology is appropriate. What are the g ...
... bound electron of B is in the n = 2 (L) shell. Our value neglects screening effects from low lying electrons. 4. When the spin-orbit interaction is taken into account, it is sometimes said that ml and ms are no longer “good quantum numbers.” Explain why this terminology is appropriate. What are the g ...
File
... • On your own piece of paper, write out your 5 chemical equations and balance them. • Then, once all equations are balanced, look at the 20 as a group. You need to split the 20 cards up in to 5 different ...
... • On your own piece of paper, write out your 5 chemical equations and balance them. • Then, once all equations are balanced, look at the 20 as a group. You need to split the 20 cards up in to 5 different ...
Purdue University PHYS221 EXAM I September 30,2003
... Each chamber in the figure below has unique magnetic field. A particles with charge +25 mC and mass of 10-10 kg enters the right chamber where B = 1.0 T directed into the page, with a velocity of 75 m/s. At what velocity does it leave the second chamber? The magnetic field in the second chamber is 0 ...
... Each chamber in the figure below has unique magnetic field. A particles with charge +25 mC and mass of 10-10 kg enters the right chamber where B = 1.0 T directed into the page, with a velocity of 75 m/s. At what velocity does it leave the second chamber? The magnetic field in the second chamber is 0 ...
Outline of Course Topics for Honors Chemistry
... Outline of Course Topics for Honors Chemistry Topics highlighted in red are specific to Honors Chemistry. Honors Chemistry Course Description: This course focuses on matter, its properties, and its changes. During the year, the following topics will be covered: measurement, problem solving, atomic s ...
... Outline of Course Topics for Honors Chemistry Topics highlighted in red are specific to Honors Chemistry. Honors Chemistry Course Description: This course focuses on matter, its properties, and its changes. During the year, the following topics will be covered: measurement, problem solving, atomic s ...
Syllabus : Advanced Quantum Mechanics (Prof
... The emphasis is on the application of field theoretic concepts and methods to understand and be able to calculate such diverse effects as: spontaneous emission and decay rates, scattering crosssections (including their polarization dependence), relativistic corrections, the Lamb shift and Casimir- a ...
... The emphasis is on the application of field theoretic concepts and methods to understand and be able to calculate such diverse effects as: spontaneous emission and decay rates, scattering crosssections (including their polarization dependence), relativistic corrections, the Lamb shift and Casimir- a ...
Unit 4: Chemical Bonding Notes Chemical Bond—a mutual
... that binds the atoms together. Chemical bonds create more stable arrangements of matter. The goal of any atom is to gain, lose, or share valence electrons creating chemical bonds to provide a mor ...
... that binds the atoms together. Chemical bonds create more stable arrangements of matter. The goal of any atom is to gain, lose, or share valence electrons creating chemical bonds to provide a mor ...
PDF(6bw)
... • ELECTRON GROUPS (non-bonding electron-pairs and covalent electron-pairs) are electron dense regions in a molecule • these ELECTRON GROUPS will arrange themselves in space around a central atom to minimize their mutual ...
... • ELECTRON GROUPS (non-bonding electron-pairs and covalent electron-pairs) are electron dense regions in a molecule • these ELECTRON GROUPS will arrange themselves in space around a central atom to minimize their mutual ...
Cloud Chamber Lab Key
... normally can't exist. Since the vapor is at a temperature where it normally can't exist, it will very easily condense into a liquid form. When an electrically charged particle comes along, it ionizes the vapor - that is, tears away the electrons in some of the gas atoms along its path. This leaves t ...
... normally can't exist. Since the vapor is at a temperature where it normally can't exist, it will very easily condense into a liquid form. When an electrically charged particle comes along, it ionizes the vapor - that is, tears away the electrons in some of the gas atoms along its path. This leaves t ...
Statistical Physics
... A boson in a state enhances the chance to find other identical bosons in that state. A fermion in a state prevents other identical fermions from occupying the state. When identical particles become distinguishable, typically, when they are well separated and when E >> kT, the B-E and F-D distributio ...
... A boson in a state enhances the chance to find other identical bosons in that state. A fermion in a state prevents other identical fermions from occupying the state. When identical particles become distinguishable, typically, when they are well separated and when E >> kT, the B-E and F-D distributio ...
9. Time-dependent Perturbation Theory
... So far we have been assuming that the perturbing wave is traveling in the +y direction with polarization in the z direction. But in fact we are interested in situations where the radiation comes in from all directions, and is polarized in all directions (allowed by its propagation direction). In or ...
... So far we have been assuming that the perturbing wave is traveling in the +y direction with polarization in the z direction. But in fact we are interested in situations where the radiation comes in from all directions, and is polarized in all directions (allowed by its propagation direction). In or ...
PES 1110 Fall 2013, Spendier Lecture 21/Page 1 Today
... DEMO 1: point around which an object balances = com - show balancing eagle - show wine holder Find the com in 2D: ...
... DEMO 1: point around which an object balances = com - show balancing eagle - show wine holder Find the com in 2D: ...
Atoms – the smallest particles that make up all matter
... Friction – the force that resists motion between two surfaces when they are rubbed against each other. The force of friction can cause electrons to be removed from atoms on one surface and transferred to the other surface and then rubbed objects become electrically charged. Inflate – to increase the ...
... Friction – the force that resists motion between two surfaces when they are rubbed against each other. The force of friction can cause electrons to be removed from atoms on one surface and transferred to the other surface and then rubbed objects become electrically charged. Inflate – to increase the ...
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.