Exam 1 Spring 2010

A 113 c 149 b 134 d 117 12 the atomic number

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Unformatted text preview: omic number indicates: A. 13. The number of neutrons in the C. The number of protons and electrons in a nucleus. neutral atom. B. The number of atoms in one D. The number of neutrons and protons in the (1) gram of the element. nucleus. What is the formula for manganese(IV) oxide? A. C. Mn2O B. 14. MnO2 Mn4O D. MnO4 What is the symbol for the cation that has a mass number 106 and 60 neutrons? The cation derived from the isotope has 44 electrons. A. C. Pd2+ B. 15. Nd+ Sm2+ D. Ru2+ Which pair of elements below is most similar in chemical properties? A. C. fluorine and iodine B. 16. carbon and nitrogen germanium and phosphorus D. arsenic and radon Which of the following is a molecular compound? A. C. NaN3 B. 17. CH3OH CuCN D. MgCl2 What is the mass, in grams, of o...
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