Chemistry part 4, Julia Burdge,2e (2009) pdf
... particle, (b) 13 particle, (c) 'I ray, (d) X ray. Name the types of radiation known to be emitted by radioactive elements. Compare the properties of the following: ex particles, ... appropriate symbol for each of the following isotopes: (a) Z = 74, A = 186; (b) Z = 80, A = 201, (c) Z = 34, A = 76 , (d) Z = 94, A = 239. 2.20 Determine the mass number of (a)...
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Chemistry part 5, Julia Burdge,2e (2009) pot
... person on Earth participates in a process of counting identical particles at the rate of two particles per second. How many years would it take to count 6.0 X lO z3 particles? Assume ... " = mol particles X = mol 6.022 X 10 23 particles g/ mol . Particles Grams Moles Atoms Molecules ~ Multiply by molar mass Multiply by NA Formula its 6.022 X 1023...
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Chemistry part 6, Julia Burdge,2e (2009) pps
... molecules surround each anion with their partial positive charges (H atoms) oriented toward the negatively charged anion; and they surround each cation with their partial negative charges (0 atoms) ... that is, its electrons are distributed such that there is a partial negative charge on the oxygen atom, denoted by the 8- symbol, and partial positive charges, denoted by the 8+ ....
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Chemistry part 7, Julia Burdge,2e (2009) ppt
... = X hter s of solutlon liters of so lution as in part (b), for the volume that contains a number of moles smaller than 0.2 77, make sure your answer is smaller than the original ... the same result. ã Before dilution: More solute particles per unit vo lume Add solvent ã After dilution: Fewer so lute particles per unit volume Because the number of mo...
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Chemistry part 8, Julia Burdge,2e (2009) docx
... electrostatic potential energy between particles with charges +3 and - 3 than between particles with charges + 1 and -I ? (A ssume the same di stance between particles.) a) 3 times b) 9 ... thermodynamics, which is particularly rel evant to the study of thermo- chemistry. We will continue our discussion of thermody nami cs in Chapter 18. We have defined a system as...
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Chemistry part 9, Julia Burdge,2e (2009) pptx
... properties characteristic of both particles and waves. Depending on the experiment , light behaves either as a wave or as a s tream of particles. This concept wa s totally ... possessing properties of both particles and wave s is not unique to light but ultimately is characteristic of all matter, including electrons. Bringing Chemistry to life Laser...
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Chemistry part 10, Julia Burdge,2e (2009) doc
... could exhibit particle-like behavior, de Broglie propo se d that matter might also exhibit wavelike behavior. The de Broglie wavelength is the wavelength associated with a particle of ... different d orbital. Again there is no direct correspondence between a given ori en tation and a particular me value. All the 3d orbitals in an atom are identical in energy and are labeled .....
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Chemistry part 11, Julia Burdge,2e (2009) ppsx
... properti es of alkali and alkaline earth metals . In many ways the chemistry of Li rese mb les that of Mg and the chemistry of Be re sembl es that of AI. Th is behav io r is called ... Properties of Elements 249 kJ/mol) lements 3 Z IE1 IE2 IE3 IE4 IE5 IE6 IE7 Li 3 520 7,298 11,8 15 Be 4 899 1,757 14,848 21,007 21,007 B 5 800 2,427 3,660 25,026...
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Chemistry part 12, Julia Burdge,2e (2009) potx
... of the alkali metal cations. [ ~~ Sample Prob l em 7.6] e) For each alkali metal cation in part (d), identify an isoelectronic series consisting ;;;- ã , of a noble gas and, where appropriate, ... Calculate Ze ff for these electrons, and explain the differences from the values you determined in part (a). Section 7.4: Periodic Trends in Properties of Elements Review Questio...
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Chemistry part 13, Julia Burdge,2e (2009) pptx
... For parts (b) and (c), show only structures in which each C atom is bonded to no more than two other C atoms. Dr aw Lewis structures for the following chlorofluorocarbons (CFCs), which are partly ... a molecule is its bond enthalpy, which is the enthalpy change asso- . ciated with breaking a particular bond in 1 mole of gaseous molecules. (Bond enthalpies in solids and liquids are af...
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Chemistry part 14, Julia Burdge,2e (2009) pdf
... tetrahedral. However, the molecular geometry of the C part of the molecule is tetrahedral, whereas the mol ecular geometry of the 0 part of the molecule is bent. Note that although ... (Continued) When we specify the geo metry of a particular portion of a molecule, we refer to it as the geometry" about" a particular atom. In met hanol, for ex...
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Chemistry part 39, Julia Burdge,2e (2009) pptx
... more distinct forms of an element. (2.6) alpha particle. A helium ion with a positive charge of + 2. (2.2) alpha ray. See alpha particle. amalgam. A substance made by combining ... of galvanic cells or a series of galvanic cells. (19.6) beta particle. An electron. (2.2) beta ray. See beta particle. bimolecular. Describes a reaction in which two reactant ... (...
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