Question

using the periodic table, please provide the name of an element that meets the following descriptions.
part 1 of 2
a nonmetal in the fourth period.
part 2 of 2
a halogen element in the third period.

Explanation:

1. For "A nonmetal in the fourth period":

• In the fourth period of the periodic table, non - metals include elements like Selenium (Se), Bromine (Br) etc.

1. For "A halogen element in the third period":

• Halogens are in Group 17 of the periodic table. In the third period, Chlorine (Cl) is a halogen.

Answer:

1. Selenium (or other non - metals in the fourth period like Bromine)
2. Chlorine