Which of the following general properties are matched with the correct group in the periodic table?

The rows in the periodic table are referred to as groups and the columns as periods. Is this statement true or false?

Pick an element from the list below that fits each description. Each element is used only once.

(a) an alkali metal
(b) a chalcogen
(c) a pnictogen
(d) a halogen
(e) a metalloid in group 15
(f) a noble gas

Elements: P, Cs, I, S, Kr, As

From the elemental pairs given below, identify the one which is the most similar in properties. Also, explain why the elements in that pair are similar.
a. Carbon and antimony
b. Vanadium and uranium
c. Francium and caesium
d. Phosphorous and oxygen
e. Nitrogen and iodine