Chapt7
... related to spatial orientation of orbitals within a given subshell possible values of ml = - l, ..... 0, ....., + l the number of ml values = number of orbitals within a subshell e.g., within a subshell having l = 2, there are 5 orbitals corresponding to the 5 possible values of ml ( - 2, -1, 0, +1, ...
... related to spatial orientation of orbitals within a given subshell possible values of ml = - l, ..... 0, ....., + l the number of ml values = number of orbitals within a subshell e.g., within a subshell having l = 2, there are 5 orbitals corresponding to the 5 possible values of ml ( - 2, -1, 0, +1, ...
Unit 2: Atoms and their Electrons
... Cl < S < P < Na < K . Sodium, phosphorus, sulfur and chlorine are all in the same period, therefore they all have the same number of shielding electrons and the effective nuclear charge increases based on the number of protons in the nucleus, therefore the atomic radius decreases from left to right ...
... Cl < S < P < Na < K . Sodium, phosphorus, sulfur and chlorine are all in the same period, therefore they all have the same number of shielding electrons and the effective nuclear charge increases based on the number of protons in the nucleus, therefore the atomic radius decreases from left to right ...
Molecular Geometry and Chemical Bonding Theory
... The dipole moment is a measure of the degree of charge separation in a molecule We can view the polarity of individual bonds with in a molecule as vector quantities. Measurements of dipole moments are based on the fact that polar molecules can be oriented by an electric field. Thus molecules that ar ...
... The dipole moment is a measure of the degree of charge separation in a molecule We can view the polarity of individual bonds with in a molecule as vector quantities. Measurements of dipole moments are based on the fact that polar molecules can be oriented by an electric field. Thus molecules that ar ...
Physical Science CP Seton Hall Preparatory School Mr. Greene
... Atomic Mass Units (AMU) Isotopes Calculation of the number of neutrons/protons contained in an isotope Ions; cations vs. anions Periodic Table: Period Group Properties of metals, nonmetals, and metalloids Periodic trends; atomic radius, electronegativity, and metallic character Major groups; alkali ...
... Atomic Mass Units (AMU) Isotopes Calculation of the number of neutrons/protons contained in an isotope Ions; cations vs. anions Periodic Table: Period Group Properties of metals, nonmetals, and metalloids Periodic trends; atomic radius, electronegativity, and metallic character Major groups; alkali ...
Chapter 2 - Atoms, Molecules, and Ions
... 33.Which of the following conclusions can be drawn from J. J. Thomson’s cathode ray experiments? a. Atoms contain electrons. b. Practically all the mass of an atom is contained in its nucleus. c. Atoms contain protons, neutrons, and electrons. d. Atoms have a positively charged nucleus surrounded by ...
... 33.Which of the following conclusions can be drawn from J. J. Thomson’s cathode ray experiments? a. Atoms contain electrons. b. Practically all the mass of an atom is contained in its nucleus. c. Atoms contain protons, neutrons, and electrons. d. Atoms have a positively charged nucleus surrounded by ...
1. Review (MC problems, due Monday) 2. - mvhs
... 3. A solution of barium hydroxide is titrated with 0.1-M sulfuric acid and the electrical conductivity of the solution is measured as the titration proceeds. a) For the reaction that occurs during the titration described above, write a balanced net ionic equation. (b) Explain why the conductivity de ...
... 3. A solution of barium hydroxide is titrated with 0.1-M sulfuric acid and the electrical conductivity of the solution is measured as the titration proceeds. a) For the reaction that occurs during the titration described above, write a balanced net ionic equation. (b) Explain why the conductivity de ...
Quantum Mechanical Model
... Quantum Mechanical Model • As the energy of an electron increases, so does the quantum number (n) • Each principle energy level is also split up into one or more sublevels • Chart on Pg. 145 [http://www.chemistry.mcmaster.ca/esam/Chapter_4/fig4-2.jpg] ...
... Quantum Mechanical Model • As the energy of an electron increases, so does the quantum number (n) • Each principle energy level is also split up into one or more sublevels • Chart on Pg. 145 [http://www.chemistry.mcmaster.ca/esam/Chapter_4/fig4-2.jpg] ...
PowerPoint Lecture Chapter 17-20
... can flow freely from position to position by sliding over one another. A liquid takes the shape of its container. ...
... can flow freely from position to position by sliding over one another. A liquid takes the shape of its container. ...
Simple Harmonic Oscillator
... Never express yourself more clearly than you are able to think. Prediction is very difficult, especially about the future. - Niels Bohr ...
... Never express yourself more clearly than you are able to think. Prediction is very difficult, especially about the future. - Niels Bohr ...
File
... 21. List two Noble Gases and explain why they are unique. Neon and Argon have full valence electron levels making them very stable 22. List two Alkali Metals and explain why they are unique. Lithium and sodium are the most reactive elements since they only have one valence electron in their outer en ...
... 21. List two Noble Gases and explain why they are unique. Neon and Argon have full valence electron levels making them very stable 22. List two Alkali Metals and explain why they are unique. Lithium and sodium are the most reactive elements since they only have one valence electron in their outer en ...
Chemistry EOC Review
... ions which have the same valence electron configuration as ___________ (because this is the most ____________ arrangement of electrons). 44) a. Compare and contrast properties of ionic & covalent bonds (including melting and boiling points, volatility, hardness, electrolytic nature, etc.). You may c ...
... ions which have the same valence electron configuration as ___________ (because this is the most ____________ arrangement of electrons). 44) a. Compare and contrast properties of ionic & covalent bonds (including melting and boiling points, volatility, hardness, electrolytic nature, etc.). You may c ...
2nd Semester Chemistry Terms - Glancy 4TH PERIOD PHYSICAL
... 76. Valence shell- the outermost occupied shell of an atom 77. Electron-dot structure- a shorthand notation of the shell model of the atom 78. Nonbonding pairs- two paired valence electrons that tend not to participate in a chemical bond 79. Ion- an electrically charged particle created when an atom ...
... 76. Valence shell- the outermost occupied shell of an atom 77. Electron-dot structure- a shorthand notation of the shell model of the atom 78. Nonbonding pairs- two paired valence electrons that tend not to participate in a chemical bond 79. Ion- an electrically charged particle created when an atom ...
2. Covalent network
... H, Li, Be, B forms stable molecules when they share two electrons Elements Carbon and beyond stable when they are surrounded by eight molecules. Second row elements (C, N, O, and F) should always obey the octet rule B and Be often have fewer than 8 electrons around them - highly reactive molecules S ...
... H, Li, Be, B forms stable molecules when they share two electrons Elements Carbon and beyond stable when they are surrounded by eight molecules. Second row elements (C, N, O, and F) should always obey the octet rule B and Be often have fewer than 8 electrons around them - highly reactive molecules S ...
1. Modern Physics
... Most positive charge and mass is in a small, centralized region (nucleus). A consequence of this is that there must be positive particles (protons). Electrons are “outside” the nucleus. Suggested that neutral particles consisting of proton plus electron might also be found (in the nucleus). ...
... Most positive charge and mass is in a small, centralized region (nucleus). A consequence of this is that there must be positive particles (protons). Electrons are “outside” the nucleus. Suggested that neutral particles consisting of proton plus electron might also be found (in the nucleus). ...
Metric Unit – Chapter 1
... combine in simple wholenumbered ratios to form 5. In chemical reactions, atoms ___________________________. are _____________________ 5. In chemical reactions, atoms are _______________________. ___________________________ ___________________________. ...
... combine in simple wholenumbered ratios to form 5. In chemical reactions, atoms ___________________________. are _____________________ 5. In chemical reactions, atoms are _______________________. ___________________________ ___________________________. ...
Chapter 7, 8, and 9 Exam 2014 Name I. 50% of your grade will come
... Select the one lettered choice that best fits each statement and then fill in the corresponding oval on the answer sheet. A choice may be used once, more than once, or not at all in each set. Questions 1–4 refer to the following types of energy. (A) (B) (C) (D) (E) ...
... Select the one lettered choice that best fits each statement and then fill in the corresponding oval on the answer sheet. A choice may be used once, more than once, or not at all in each set. Questions 1–4 refer to the following types of energy. (A) (B) (C) (D) (E) ...
Review Package
... (i) Classifying the type of bond that will form between the two elements as ionic or covalent. (ii) Use Bohr-Rutherford/Lewis diagrams to show how electrons are shared or transferred to form the bonds. Show resulting charges for ionic binding. (iii) Write the chemical formula. Calcium combines with ...
... (i) Classifying the type of bond that will form between the two elements as ionic or covalent. (ii) Use Bohr-Rutherford/Lewis diagrams to show how electrons are shared or transferred to form the bonds. Show resulting charges for ionic binding. (iii) Write the chemical formula. Calcium combines with ...
Chemical Reactions & Balancing Equations
... sodium + citric sodium + water + carbon bicarbonate acid citrate dioxide ...
... sodium + citric sodium + water + carbon bicarbonate acid citrate dioxide ...
High School Physical Science Glossary
... (F) is F = ma Newton's 3rd law- for every action there is an equal and opposite reaction, thus forces occur in pairs noble gas- any of the six gases helium, neon, argon, krypton, xenon, and radon; the outermost electron shell of atoms of these gases is full, so they do not react chemically with othe ...
... (F) is F = ma Newton's 3rd law- for every action there is an equal and opposite reaction, thus forces occur in pairs noble gas- any of the six gases helium, neon, argon, krypton, xenon, and radon; the outermost electron shell of atoms of these gases is full, so they do not react chemically with othe ...
3-3 More bonding.pptx
... Materials that are insulators (eg diamond) there is a large energy gap between the valence and conducKon ...
... Materials that are insulators (eg diamond) there is a large energy gap between the valence and conducKon ...
Chemical bond
A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between opposite charges, either between electrons and nuclei, or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are ""strong bonds"" such as covalent or ionic bonds and ""weak bonds"" such as Dipole-dipole interaction, the London dispersion force and hydrogen bonding.Since opposite charges attract via a simple electromagnetic force, the negatively charged electrons that are orbiting the nucleus and the positively charged protons in the nucleus attract each other. An electron positioned between two nuclei will be attracted to both of them, and the nuclei will be attracted toward electrons in this position. This attraction constitutes the chemical bond. Due to the matter wave nature of electrons and their smaller mass, they must occupy a much larger amount of volume compared with the nuclei, and this volume occupied by the electrons keeps the atomic nuclei relatively far apart, as compared with the size of the nuclei themselves. This phenomenon limits the distance between nuclei and atoms in a bond.In general, strong chemical bonding is associated with the sharing or transfer of electrons between the participating atoms. The atoms in molecules, crystals, metals and diatomic gases—indeed most of the physical environment around us—are held together by chemical bonds, which dictate the structure and the bulk properties of matter.All bonds can be explained by quantum theory, but, in practice, simplification rules allow chemists to predict the strength, directionality, and polarity of bonds. The octet rule and VSEPR theory are two examples. More sophisticated theories are valence bond theory which includes orbital hybridization and resonance, and the linear combination of atomic orbitals molecular orbital method which includes ligand field theory. Electrostatics are used to describe bond polarities and the effects they have on chemical substances.