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S90 Notes U2 Topic 6 Chemical Compounds
... Naming ionic compounds: Ex. NaCl, LiF, CaCl2 Rules are from IUPAC (International Union of Pure and Applied Chemistry) 1. Name the metallic element 1st as it is written on the periodic table. 2. Name the nonmetallic element second, changing its ending to “ide.” 3. Positive and negative charges must e ...
... Naming ionic compounds: Ex. NaCl, LiF, CaCl2 Rules are from IUPAC (International Union of Pure and Applied Chemistry) 1. Name the metallic element 1st as it is written on the periodic table. 2. Name the nonmetallic element second, changing its ending to “ide.” 3. Positive and negative charges must e ...
The Atomic Theory of Matter
... gold foil a few thousand atoms thick. He found that most passed right through the gold foil while some were deflected. This was later concluded that there is a lot of empty space in an atom and that they mostly passed through the empty space ,sometimes getting deflected by the later discovered nucle ...
... gold foil a few thousand atoms thick. He found that most passed right through the gold foil while some were deflected. This was later concluded that there is a lot of empty space in an atom and that they mostly passed through the empty space ,sometimes getting deflected by the later discovered nucle ...
Ch. 2 The Chemistry of Life
... - pH scale - _________________ system to indicate the _______________ of ____ ions in ______________, ranges from _______ - Acid – any ______________ that forms _____ ions in ____________ - __________ solutions have __________ concentration of ____ ions than pure _________ & have ____ values _______ ...
... - pH scale - _________________ system to indicate the _______________ of ____ ions in ______________, ranges from _______ - Acid – any ______________ that forms _____ ions in ____________ - __________ solutions have __________ concentration of ____ ions than pure _________ & have ____ values _______ ...
1.5.16(Chem) - mrcarlsonschemistryclass
... • Draw the funny way to remember cations and anions: ...
... • Draw the funny way to remember cations and anions: ...
Atomic Structure - Hudson City School District
... • Attraction between two or more atoms due to opposite charges • YouTube - ?Ionic and covalent bonding animation?? ...
... • Attraction between two or more atoms due to opposite charges • YouTube - ?Ionic and covalent bonding animation?? ...
Chemical Context of Life
... 2. Nonpolar and polar covalent bonds electronegativity = atom’s ability to attract and hold electrons • the more electronegative an atom, the more strongly it attracts shared electrons • O = 3.5, N = 3.0, S and C = 2.5, P and H = 2.1 Nonpolar covalent bond = covalent bond formed by an equal sharing ...
... 2. Nonpolar and polar covalent bonds electronegativity = atom’s ability to attract and hold electrons • the more electronegative an atom, the more strongly it attracts shared electrons • O = 3.5, N = 3.0, S and C = 2.5, P and H = 2.1 Nonpolar covalent bond = covalent bond formed by an equal sharing ...
PPT - gserianne.com
... Important Definitions of Organizational Terms • Cell – The basic unit of biological structure and function (what is a ‘basic unit’ of something?) • Tissues – A group of cells working together to perform one or more specific functions • Organs – Two or more tissues working in combination to perform ...
... Important Definitions of Organizational Terms • Cell – The basic unit of biological structure and function (what is a ‘basic unit’ of something?) • Tissues – A group of cells working together to perform one or more specific functions • Organs – Two or more tissues working in combination to perform ...
Chemical Bonding
... is a method chemists use to separate compounds from one another, but not change them. The polar regions of these molecules are attracted to polar regions of the cellulose chains (which help to hold the fibers together in paper). Not surprisingly, water molecules, being polar, are also attracted to t ...
... is a method chemists use to separate compounds from one another, but not change them. The polar regions of these molecules are attracted to polar regions of the cellulose chains (which help to hold the fibers together in paper). Not surprisingly, water molecules, being polar, are also attracted to t ...
Click here to Ch 06.2 Covalent Bonding_Lewis Structures
... electrons, and for those that can fit more than eight electrons, into their outermost orbital. • Hydrogen forms bonds in which it is surrounded by only two electrons. • Boron has just three valence electrons, so it tends to form bonds in which it is surrounded by six electrons. ...
... electrons, and for those that can fit more than eight electrons, into their outermost orbital. • Hydrogen forms bonds in which it is surrounded by only two electrons. • Boron has just three valence electrons, so it tends to form bonds in which it is surrounded by six electrons. ...
Text Outline
... In Chap. 10, the text covers the use of a classical approach, called Valence Shell Electron Pair Repulsion (VSEPR) Theory to predict the shapes of molecules with coordination numbers of 2 - 6. In Chap. 11, the text introduces the use of Quantum Mechanics (Valence Bond Theory and Orbital Hybridizatio ...
... In Chap. 10, the text covers the use of a classical approach, called Valence Shell Electron Pair Repulsion (VSEPR) Theory to predict the shapes of molecules with coordination numbers of 2 - 6. In Chap. 11, the text introduces the use of Quantum Mechanics (Valence Bond Theory and Orbital Hybridizatio ...
PowerPoint Chapter 14 - Preparatory Chemistry
... • Ionic – cations and anions, ionic bonds • Molecular – Nonpolar – molecules, London forces – Polar without H-F, O-H, or N-H – molecules, dipole-dipole attractions – Polar with H-F, O-H, or N-H – molecules, hydrogen bonds ...
... • Ionic – cations and anions, ionic bonds • Molecular – Nonpolar – molecules, London forces – Polar without H-F, O-H, or N-H – molecules, dipole-dipole attractions – Polar with H-F, O-H, or N-H – molecules, hydrogen bonds ...
Fundamentals Fall Final Review
... 18. Know what happens to the size of atoms as you move across a period or down a group. Know which member of the following pairs of particles is larger: Pd, Rb; Mg, Ba; Cs, Lu; Se, O. 19. Which of the following atoms would we expect to have the largest radius? Li, B, O, or F 20. Know which is larger ...
... 18. Know what happens to the size of atoms as you move across a period or down a group. Know which member of the following pairs of particles is larger: Pd, Rb; Mg, Ba; Cs, Lu; Se, O. 19. Which of the following atoms would we expect to have the largest radius? Li, B, O, or F 20. Know which is larger ...
Lecture 5
... Hund’s rules (i) Of the terms arising from equivalent electrons, those with the highest multiplicity lie the lowest in energy. (ii) Of these, the lowest is that with the highest value of L. Lande’s interval rule For less than half-filled orbitals, smaller J has lower energy. For more than half-fill ...
... Hund’s rules (i) Of the terms arising from equivalent electrons, those with the highest multiplicity lie the lowest in energy. (ii) Of these, the lowest is that with the highest value of L. Lande’s interval rule For less than half-filled orbitals, smaller J has lower energy. For more than half-fill ...
document
... breaks down into its parts. 2. Ion C B. A bond that is formed by sharing electrons. 3. Charge D C. A charged atom. D. The number of electrons an 4. Covalent Bond B element is willing to gain, lose, or share to form compounds. 5. Ionic Bond I E. States that all elements want either a full outer shell ...
... breaks down into its parts. 2. Ion C B. A bond that is formed by sharing electrons. 3. Charge D C. A charged atom. D. The number of electrons an 4. Covalent Bond B element is willing to gain, lose, or share to form compounds. 5. Ionic Bond I E. States that all elements want either a full outer shell ...
Exam and Study Notes
... o Remember [Ar] 4s2 3d10 4p5 still means 7 electrons in outer shell (4 th shell) Three principles to follow o The Aufbau Principle (electrons start from the lowest energy) “The building up principle” The Aufbau Principle states that the to fill the 3d subshell, the 4s subshell must have 2 elec ...
... o Remember [Ar] 4s2 3d10 4p5 still means 7 electrons in outer shell (4 th shell) Three principles to follow o The Aufbau Principle (electrons start from the lowest energy) “The building up principle” The Aufbau Principle states that the to fill the 3d subshell, the 4s subshell must have 2 elec ...
chemistry i - surrattchemistry
... a. The atom is a hard spheremost of the atom is empty space with a small dense nucleuselectrons exist in orbitals outside the nucleus b. The atom is a hard sphereelectrons exist in orbitals outside the nucleusmost of the atom is empty space with a small dense nucleus. c. Most of the atom is empt ...
... a. The atom is a hard spheremost of the atom is empty space with a small dense nucleuselectrons exist in orbitals outside the nucleus b. The atom is a hard sphereelectrons exist in orbitals outside the nucleusmost of the atom is empty space with a small dense nucleus. c. Most of the atom is empt ...
Name: Date: Period: _____ Unit 2 Notes, Part 1 – The Basics of
... between the valence electrons of two atoms. Valence electrons are the electrons in the outermost (highest) energy level. There are two main types of bonds within molecules, which are described below. -Ionic bonds involve the transfer of one or multiple electrons from one atom to another and the attr ...
... between the valence electrons of two atoms. Valence electrons are the electrons in the outermost (highest) energy level. There are two main types of bonds within molecules, which are described below. -Ionic bonds involve the transfer of one or multiple electrons from one atom to another and the attr ...
The Chemical Earth
... The name of the element closer to the bottom or left-hand side of the periodic table is written first. The the suffix ‘-ide’ is added to the end of the name of the second element. The number of atoms of each element is indicated by the prefixes ‘mono-’, ‘di-’, ‘tri-’, ‘tetra-’, ‘penta-’ or hexa-’, w ...
... The name of the element closer to the bottom or left-hand side of the periodic table is written first. The the suffix ‘-ide’ is added to the end of the name of the second element. The number of atoms of each element is indicated by the prefixes ‘mono-’, ‘di-’, ‘tri-’, ‘tetra-’, ‘penta-’ or hexa-’, w ...
I believe the chemical bond is not so simple as people seem to think
... Hea2 .butterfly, Its existence was for a long delicate molecule formed by two helium atoms requires a light touch. time disputed because of its extremely small binding enThe helium dimer is the largest two-atom molecule and has the ...
... Hea2 .butterfly, Its existence was for a long delicate molecule formed by two helium atoms requires a light touch. time disputed because of its extremely small binding enThe helium dimer is the largest two-atom molecule and has the ...
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.