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... • Key to the chemical behavior of an atom lies in the number and arrangement of its electrons in their orbitals • Bohr model – electrons in discrete orbits • Modern physics defines orbital as area around a nucleus where an electron is most likely to be found ...
Chapter 2
Chapter 2

... • Key to the chemical behavior of an atom lies in the number and arrangement of its electrons in their orbitals • Bohr model – electrons in discrete orbits • Modern physics defines orbital as area around a nucleus where an electron is most likely to be found ...
1. Define each of the following terms: a.Alkaline earth metals
1. Define each of the following terms: a.Alkaline earth metals

... to reverse all characteristics of a chemical change.) ...
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... element is willing to gain, lose, or share to form compounds. 5. Ionic Bond E. States that all elements want either a full outer shell or eight 6. Subscript electrons in their outer electron shell. 7. Polyatomic Ion F. A multiplier. It is used to balance equations. 8. Synthesis Reaction G. A reactio ...
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File

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Final Exam Review

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File - GertrudeKatzChronicles

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Review-Semester Final (Part I)

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... a. Draw a complete Lewis electron-dot structure for the CS2 molecule. Include all valence electrons in your structure. b. The carbon-to-sulfur bond length in CS2 is 160 picometers. Is the carbon-to-selenium bond length in CSe2 expected to be greater than, less than, or equal to this value? ...
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General Chemistry First Semester Review General

... - read given information carefully. Water vapor is noted with a (g) because it is a gas, not a liquid. Double replacement reactions are between two aqueous solutions that produce an insoluble precipitate. Solubility rules can predict which substance is the solid. The solubility table is on p. 178 in ...
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... – Lewis: Atoms share a pair of electrons to form bond – VB: Orbitals with unpaired electrons overlap to share electrons and form bonds ...
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Goal 1 Study Guide

... electrons for only the first 18 elements, in a Bohr model how many electrons are located in each of the first three energy levels? 13. Practice Problems: Drawing Bohr Models a. sodium b. sulfur c. aluminum d. fluorine e. calcium f. nitrogen 14. An electron configuration can be effective for describi ...
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Summer Resources - mvhs

... subtracting the sum of masses of C and H from total g present of that substance. From the mass of C,H and O, we can calculate the moles of C,H and O. Then the smallest whole number ratios of these moles will give the empirical formula. Ex. A 0.6349 g sample of the unknown produced 1.603 g of CO2 and ...
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Section 6.1: Covalent Bonding Basics

... atoms that are not the same. A nonpolar covalent bond is a covalent bond in which the bonding electrons are equally attracted to both bonded atoms. A polar covalent bond is a covalent bond in which a shared pair of electrons is held more closely by one of the atoms. The ability of an atom to attrac ...
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1) - Kurt Niedenzu

... within a group is primarily due to an increase in the number of a) neutrons in the nucleus b) electrons in the outermost shell c) unpaired electrons d) occupied principal energy levels 33) Elements that have properties of both metals and nonmetals are called a) alkali metals c) metalloids b) transit ...
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... 13. Why is the subscript often omitted in, for example, the notation ...
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Chemical Bonding

... List the following bonds (A-B) in order of increasing ionic character. Assume that % ionic character is directly proportional to ∆EN (ENA-ENB ). Do not use the table in the text but predict the answers based on the general periodic trends and other data given in class. (a) ...
Unit 2 - Biochemistry Notes
Unit 2 - Biochemistry Notes

... Compound – when different elements combine. CO2 and H2O are molecules, but they are also compounds because they are molecules containing more than one element. ...
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Hypervalent molecule

A hypervalent molecule (the phenomenon is sometimes colloquially known as expanded octet) is a molecule that contains one or more main group elements formally bearing more than eight electrons in their valence shells. Phosphorus pentachloride (PCl5), sulfur hexafluoride (SF6), chlorine trifluoride (ClF3), and the triiodide (I3−) ion are examples of hypervalent molecules.
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