Question: Question 6 3 Points What is the symbol for an ion with atomic number 15, mass number 31, and 3- charge? A 15 31 Li3-

Question 6 3 Points What is the symbol for an ion

Question 6 3 Points What is the symbol for an ion with atomic number 15, mass number 31, and 3- charge? A 15 31 Li3- B 15 31 p3. 31 15 Ga3. D) 31 15 P3. Question 7 3 Points An element has the following natural abundances and isotopic masses: 90.92% abundance with 19.99 amu, 0.26% abundance with 20.99 amu, and 8.82% abundance with 21.99 amu. What is the average atomic mass of this element? A 20.17 B 20.99 19.99 21.99

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