For each of the following elements, write its chemical symbol, determine the name of the group to which it belongs (Table 2.3), and indicate whether it is a metal, metalloid, or nonmetal:
(a) Potassium
(b) Iodine
(c) Magnesium
(d) Argon
(e) Sulfur.
Table 2.3

Transcribed Image Text:

TABLE 2.3 ·Names of Some Groups in the Periodic Table Group Name Elements 1A 2A 6A 7A 8A Alkali metals Alkaline earth metals Chalcogens Halogens Noble gases (or rare gases) Li, Na, K, Rb, Cs, Fr Be, Mg, Ca, Sr, Ba, Ra O, S, Se, Te, Po F, Cl, Br, I, At He, Ne, Ar, Kr, Xe, Rn