Chapter 1: Chemistry and You
... 3. Describe the basic structure of the atom in the modern atomic theory (be able to label protons, neutrons, electrons, and the nucleus) (Ch. 3): ...
... 3. Describe the basic structure of the atom in the modern atomic theory (be able to label protons, neutrons, electrons, and the nucleus) (Ch. 3): ...
Chapter 2 - Chemical Context of Life
... contact/bond between atoms can be brief. Hydrogen bonds occur when H is covalently bonded to an electronegative atom and attracted to another electronegative atom. ...
... contact/bond between atoms can be brief. Hydrogen bonds occur when H is covalently bonded to an electronegative atom and attracted to another electronegative atom. ...
Chapter 8
... Hyprid Orbitals The VSEPR model, is a simple model used for predicting molecular shape. For example, based on the shapes and orientations of the 2s and 2p orbitals on a carbon atom, it is not obvious why a CH4 molecule should have a tetrahedral geometry. To explain molecular geometries, we can assum ...
... Hyprid Orbitals The VSEPR model, is a simple model used for predicting molecular shape. For example, based on the shapes and orientations of the 2s and 2p orbitals on a carbon atom, it is not obvious why a CH4 molecule should have a tetrahedral geometry. To explain molecular geometries, we can assum ...
1 Electrons in Atoms
... covalent bond : homopolar, nearly symmetric participation of the two atoms in sharing an electron. molecular bonds: the spectrum of bonds between the two extremes of atomic bonding. polar molecules: many molecules having dissimilar atoms may have electric dipole moments and are thus polar. van der W ...
... covalent bond : homopolar, nearly symmetric participation of the two atoms in sharing an electron. molecular bonds: the spectrum of bonds between the two extremes of atomic bonding. polar molecules: many molecules having dissimilar atoms may have electric dipole moments and are thus polar. van der W ...
Chapter 9 Notes - UIC Department of Chemistry
... Formal charge of atom = group number - # electrons in lone pairs - 1/2 (# of shared electrons) = group number - # electrons in lone pairs − #bonds to atom Draw Lewis structures for the following. Check by determining the formal charge on each atom in the structure. Summation of all the formal charge ...
... Formal charge of atom = group number - # electrons in lone pairs - 1/2 (# of shared electrons) = group number - # electrons in lone pairs − #bonds to atom Draw Lewis structures for the following. Check by determining the formal charge on each atom in the structure. Summation of all the formal charge ...
Bonding in Atoms
... • Compounds of ionic bonding are often solid at room temperature • Compounds will have a high melting point with ionic bonds ...
... • Compounds of ionic bonding are often solid at room temperature • Compounds will have a high melting point with ionic bonds ...
Answers - U of L Class Index
... Which has a higher average N-O bond order? nitrite (average bond order for nitrite = 1.5; … for nitrate = 1.33) How will the different N-O bond lengths compare? The N-O bonds in nitrite will be shorter because the bond order is higher. ...
... Which has a higher average N-O bond order? nitrite (average bond order for nitrite = 1.5; … for nitrate = 1.33) How will the different N-O bond lengths compare? The N-O bonds in nitrite will be shorter because the bond order is higher. ...
Ch. 2 - Ltcconline.net
... 2. subatomic particles make up the atom. 3. Differences in elements 4. isotopes - different numbers of neutrons so mass changes E. Electron arrangement determines chemical properties of atom 1. electrons determine how an atom behaves 2. electrons vary in energy 3. electrons occur at certain energy l ...
... 2. subatomic particles make up the atom. 3. Differences in elements 4. isotopes - different numbers of neutrons so mass changes E. Electron arrangement determines chemical properties of atom 1. electrons determine how an atom behaves 2. electrons vary in energy 3. electrons occur at certain energy l ...
Review of Definitions
... another atom in a chemical bond. The electronegativity of an atom depends on two factors : (1) the number of positive charges in the nucleus (the more protons, the more electronegative) and (2) the distance of the outer electrons from the nucleus (the greater the distance, the less electronegative) ...
... another atom in a chemical bond. The electronegativity of an atom depends on two factors : (1) the number of positive charges in the nucleus (the more protons, the more electronegative) and (2) the distance of the outer electrons from the nucleus (the greater the distance, the less electronegative) ...
Atoms and Molecules video guide
... 13. What does an element’s atomic mass tell about the atoms that make up that ...
... 13. What does an element’s atomic mass tell about the atoms that make up that ...
Discovering Trends in a Chemical Family
... 1. Read through the entire procedure, data analysis, and conclusion sections to be sure of the expectations of this exercise. 2. Fold the paper lengthwise into 3 columns. You may use more than 1 sheet. 3. In the first column, write the formulas listed above. 4. In the second column, draw a Lewis Dot ...
... 1. Read through the entire procedure, data analysis, and conclusion sections to be sure of the expectations of this exercise. 2. Fold the paper lengthwise into 3 columns. You may use more than 1 sheet. 3. In the first column, write the formulas listed above. 4. In the second column, draw a Lewis Dot ...
Study Guide.Ch.11and12.tst
... 31. Draw electron-dot diagrams for each of the following atoms, and state how many bonds it will have to make to fill its outer energy level. a. sulfur, S b. nitrogen, N c. neon, Ne d. iodine, I e. silicon, Si 32. Using your knowledge of valence electrons, explain the main reason so many different m ...
... 31. Draw electron-dot diagrams for each of the following atoms, and state how many bonds it will have to make to fill its outer energy level. a. sulfur, S b. nitrogen, N c. neon, Ne d. iodine, I e. silicon, Si 32. Using your knowledge of valence electrons, explain the main reason so many different m ...
covalent bond
... one sigma bond and at least one p bond. The pi (p) bond is formed when parallel orbitals overlap and share electrons, and it occupies the space above and below the line that represents where the two atoms are joined together. ...
... one sigma bond and at least one p bond. The pi (p) bond is formed when parallel orbitals overlap and share electrons, and it occupies the space above and below the line that represents where the two atoms are joined together. ...
Molecular Geometry - hrsbstaff.ednet.ns.ca
... The nonbonding electron pairs are as important as bonding electron pairs in determining the structure. Nonbonding electrons take up more space in the valence shell than the bonding electrons. If one or more of the electron pairs are lone pairs, the distribution of electron pair and the geometrical ...
... The nonbonding electron pairs are as important as bonding electron pairs in determining the structure. Nonbonding electrons take up more space in the valence shell than the bonding electrons. If one or more of the electron pairs are lone pairs, the distribution of electron pair and the geometrical ...
Intensive Chemistry: the Structure of Matter
... • Atoms share valence electrons in a hybrid orbital between them – Two atoms of O each need two valence electrons to complete their outer shell, so they bond together to form O2 ...
... • Atoms share valence electrons in a hybrid orbital between them – Two atoms of O each need two valence electrons to complete their outer shell, so they bond together to form O2 ...
Introduction_to_Geochemistry_Pre-Lecture_Quiz
... detach the loosest electron from atoms of that element. (e) All alkali metals have similar chemical properties. (f) Alkali earths have one electron in the outer shell. (g) Electronegativity is the amount of negative charge on an atom. (h) Ca has a valency of 2. (i) True ionic bonds are unknown and a ...
... detach the loosest electron from atoms of that element. (e) All alkali metals have similar chemical properties. (f) Alkali earths have one electron in the outer shell. (g) Electronegativity is the amount of negative charge on an atom. (h) Ca has a valency of 2. (i) True ionic bonds are unknown and a ...
1 Naming compounds 2 Light and matter
... a Give the hybridization for the central atom in this molecule. COCl2 ...
... a Give the hybridization for the central atom in this molecule. COCl2 ...
Chapter 6 Quiz
... ______ 4. The B—F bond in BF3 (electronegativity for B is 2.0; electronegativity for F is 4.0) is a. polar covalent. b. nonpolar covalent. c. ionic. d. metallic. ______ 5. The electron configuration of nitrogen is 1s2 2s2 2p3. How many more electrons does nitrogen need to satisfy the octet rule? a. ...
... ______ 4. The B—F bond in BF3 (electronegativity for B is 2.0; electronegativity for F is 4.0) is a. polar covalent. b. nonpolar covalent. c. ionic. d. metallic. ______ 5. The electron configuration of nitrogen is 1s2 2s2 2p3. How many more electrons does nitrogen need to satisfy the octet rule? a. ...
Midterm II Example (Key)
... Lewis Structures a Draw the Lewis structure of SO3 , where all the atoms obey the octet rule. If the structure is a resonance structure, then give all the resonance structures. If there are any formal charges, indicate them as well. ...
... Lewis Structures a Draw the Lewis structure of SO3 , where all the atoms obey the octet rule. If the structure is a resonance structure, then give all the resonance structures. If there are any formal charges, indicate them as well. ...
The Nature of Matter
... • General definition: molecules are the smallest part of a compound. • Formed by combining 2 or more of the SAME atom or DIFFERENT atoms • Note: molecules are covalently bonded • Ex: H2, O2, N2 ,H20, C6H12O6 ...
... • General definition: molecules are the smallest part of a compound. • Formed by combining 2 or more of the SAME atom or DIFFERENT atoms • Note: molecules are covalently bonded • Ex: H2, O2, N2 ,H20, C6H12O6 ...
Ch 6 PART (B) List the seven diatomic compounds What is the
... List the seven diatomic compounds What is the hybridization of NH3 ? Is it a polar molecule? What is its ideal bond angle and geometry Sp3, yes, tetrahedral, 109 (actual is pyramidal at 107) ...
... List the seven diatomic compounds What is the hybridization of NH3 ? Is it a polar molecule? What is its ideal bond angle and geometry Sp3, yes, tetrahedral, 109 (actual is pyramidal at 107) ...