Answer
a. main group element;
b. main group element;
c. transition element;
d. transition element
Work Step by Step
a. Tellurium is in the 6A group which means that it is a main group element.
b. Potassium is in the 1A group which means that it is a main group element.
c. Vanadium is a transition metal since it's part of the transition metal elements on the periodic table.
d. Manganese is a transition metal since it's part of the transition metal elements on the periodic table.
