1. Determine the number of protons, neutrons, and electrons for the following elements. a) K41 b) 2929Cu c) H1 d) 17O 2. List the elements with 33 protons, 79 protons, and 108 protons? 3. Iron has four naturally occurring isotopes. They have 28,30,31, and 32 neutrons, respectively. Write the notations for each of the four isotopes. Use A2X and X-A notation. (Remember A is mass number: Z+N, not atomic mass). 4. 5. Complete the following table. An unknown element is found to contain isotopes with the following masses and natural abundances: 38.9637 amu (93.08\%), 39.9640 amu (0.012%), and 40.9618 amu (6.91%). Using these data, identify the element. a. S d. K b. Cl e. Ca c. Ar Calculate here