a. What is the group number and name of the group that contains potassium? b. I...

a. What is the group number and name of the group that contains potassium?

b. Is potassium a metal, a nonmetal, or a metalloid?

c. How many protons are in an atom of potassium?

d. What is the most prevalent isotope of potassium (see Table 4.8)?

e. Potassium has three naturally occurring isotopes. They are K-39 (93.26%, 38.964 amu), K-40 (0.0117%, 39.964 amu), and K-41 (6.73%, 40.962 amu). Calculate the atomic mass of potassium from the naturally occurring isotopes and their abundance using the weighted average mass method.

Reference Table 4.8: