Chapter 2, Problem 121IP

Using the information in Table 2.1, answer the following questions. In an ion with an unknown charge, the total mass of all the electrons was determined to be 2.55 × 10⁻²⁶ g. while the total mass of its protons was 5.34 × 10⁻²³ g. What is the identity and charge of this ion? What is the symbol and mass number of a neutral atom whose total mass of its electrons is 3.92 × 10⁻²⁶ g, while its neutrons have a mass of 9.35 × 10⁻²³ g?