06 PeriodicTable&MolecReps

06 - 2 H and tritium 3 H are isotopes of hydrogen Two isotopes differ by the number of neutrons that they have Two isotopes differ by their mass

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1 1 80 40 ions detected per second 0 37 35 mass in amu In response to F of C 02-2 Exercise 4, a student submitted the following sketch of a mass spectrum of chlorine. Do you agree that this is a reasonable representation? A) Yes, good job! B) No, corrections are needed. 2 SmartWork Seems to be working this AM – really fast! Due dates have been extended. Must complete assignments to receive credit. The publisher and SmartWork crew apologize profusely!
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2 3 Definition of Isotope Isotopes are atoms of an element that have the same number of protons but different numbers of neutrons and therefore different masses. An isotope is a form of an element with a specific number of neutrons. For example, chlorine consists of the isotopes chlorine-35 and chlorine-37. 4 Usage An atom of the potassium-39 isotope has 20 neutrons. Hydrogen ( 1 H), deuterium (
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Unformatted text preview: 2 H), and tritium ( 3 H) are isotopes of hydrogen. Two isotopes differ by the number of neutrons that they have. Two isotopes differ by their mass number. Two isotopes differ by their atomic mass. Two isotopes have the same atomic number. 3 5 Activity 03-1 Molecular Representations Activity 02-3 The Periodic Table of the Elements 6 Molecular Representations 4 7 Exercise 1, line 2: Write the molecular and structural formulas for 3-hexyne. A) C 4 H 2 B) C 4 H 4 C) C 6 H 4 D) C 6 H 8 E) C 6 H 10 Complete activity as homework, answers will be posted on Bb. 8 Which statement below is not correct? A) Chlorine is a halogen. B) Krypton is a noble gas. C) Copper is a transition metal. D) Sodium is an alkali metal. E) Cobalt is an alkaline earth metal....
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This note was uploaded on 06/04/2011 for the course CHE 129 taught by Professor Hanson during the Fall '08 term at SUNY Stony Brook.

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06 - 2 H and tritium 3 H are isotopes of hydrogen Two isotopes differ by the number of neutrons that they have Two isotopes differ by their mass

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