IDi A 7. What method is used to determine the exact masses of isotopes a. densit
ID: 998151 • Letter: I
Question
IDi A 7. What method is used to determine the exact masses of isotopes a. density measurements b. filtration e. electron microscopy d. scanning tunneling microscopy e mass spectromctry nasses of isotopes and their relative abundances? -8, whi 8. Which of the following atoms contains the largest number o t namber of protons? b. 1WNd c. 1271 d· 175Lu -9. which two of the atoms below have the same number of neutrons? 10. What is the identity of X? a. molybdenum b. technetium c. americium d. copper e. iodine Silver has an atomic mass of 107.9 armu. If 51.84% of Ag exists as Ag-107 ( 106.9051 amu), what is the identity and the atomic mass of the other isotope? a. Ag-108; 107.9 amu b. Ag-109; 109.0 amu c. Ag-109; 109.9 amu d. Ag-110; 109.9 amu e. Ag-110: 110.2 amu I l. The molar mass of titanium is 47.88 g/mole. What is the mass of a single Ti atom? a. 3.468 x 10* g b. 7.951 x 10"g 12. c. 2.089 x 10 g 2089 × 10-2 g C. d. 1.258 x 10 g e. 2.883 x 105gExplanation / Answer
7. e
8. d
9. c
10. a
11. b
12. b