Question

q1 - find the alkali metal in the 4th period
phosphorus
oxygen
potassium
chlorine
question 2 (1 point)
q2 - find the halogen in the 3rd period
potassium
oxygen
chlorine
phosphorus

Explanation:

• For Q1, alkali metals are in Group 1 of the periodic table. Potassium is in the 4th period and Group 1. Phosphorus is a non - metal in Group 15, Oxygen is a non - metal in Group 16, and Chlorine is a halogen in Group 17.
• For Q2, halogens are in Group 17 of the periodic table. Chlorine is in the 3rd period and Group 17. Potassium is an alkali metal, Oxygen is a non - metal in Group 16, and Phosphorus is a non - metal in Group 15.

Answer:

Q1. C. Potassium
Q2. C. Chlorine