CHEM 1310 : CHEM+1310+Practice+Question+Bank+Key.pdf
Document Summary
86: antimony, sb, has two stable isotopes. Given that 43. 8% of natural antimony is. 123sb with the experimentally determined mass 122. 904 amu, what is the other stable isotope: 120sb, 121sb, 122sb, 123sb, 124sb. Which chemical species is incorrectly named: cabr2 calcium bromide titanium(ii) chloride, ticl2, (nh4)2co3 ammonium carbonate, pf5 phosphorus pentafluoride carbon trioxide, co32- . A given isotope contains 92 protons, 146 neutrons, and 86 electrons. Which symbol represents the alkaline earth metal with the greatest atomic number: fr, ra, sr, tl, rn. Which of theses is an isotope of 12c: 12n, 12c2, 6b, 13c, 11b. How many neutrons are present in one atom of 32p: 15, 17, 32, 5, 3. Which formula represents copper(ii) nitrate: co3n2, cu3n2, cuno3, cu(no3)2, cono3. 3: which symbol best represents the isotope of selenium that contains 34 protons, The only two significant isotopes of group 3a element gallium are 69ga (68. 9256amu) and 71ga (70. 9247 amu). 69. 00: c3h6o3, c3h2o3, ch2o, c3h3o6, cho2.
