Complete the table below. All elements are neutral. Element Silver Symbol 134 54Xe Atomic Number 92 Mass Number Number of Number of protons neutrons Number of electrons 107 9 10 143 41 19 2. Write the symbol for the following elements. a. Z 29, A = 65 b. Z=20, A = 45 e. Z=12, A = 13 f. Z=68, A = 167 c. Z=36, A = 84 g. Z= 74, A = 184 d. Z=8, A = 18 h. Z 49, A = 115 3. Complete the table below. Mineral Supplement Calcium carbonate Iron(II) sulfate Chromium(III) nitrate Bones and Teeth Hemoglobin Insulin Mineral Use Ion Provided Number of protons Number of electrons Ca2+ Fe2+ Cr3+ Magnesium sulfate Bones Mg2+ Cellular metabolism Zn2+ Thyroid function I Zinc sulfate Potassium iodide 4. An unknown element contains 33 protons, 36 electrons, and has a mass number of 76. a. What is the atomic number of this element? b. What is the name and symbol of this element? c. How many neutrons does it contain? d. What is the charge on this ion? Is it a cation or an anion? e. Write the full symbol for this element. 5. How is it possible to for there to be more than one kind of atom of the same element? 6. Given the following information, determine which, if any, elements are isotopes. Element 1: mass number = 32; number of neutrons = 17 Element 2: mass number = 32; number of protons = 16 Element 3: number of protons = 15; number of neutrons = 16 7. A particular element exists in two stable isotopic forms. One isotope has a mass of 62.9296 amu (69.17% abundance). The other isotope has a mass of 64.9278 amu (30.83% abundance). Calculate the average mass of the element and determine its identity.