Question

Arrange p, s, and o in order of increasing atomic radius.

1) p < s < o
2) s < o < p
3) o < p < s
4) o < s < p
5) The answer cannot be determined from the data given.

Answer 1

The order of increasing atomic radius for the elements oxygen (O), phosphorus (P), potassium (K), and sulfur (S) is: phosphorus (P) < sulfur (S) < oxygen (O) < potassium (K).

Step-by-step explanation:

The order of increasing atomic radius for the elements oxygen (O), phosphorus (P), potassium (K), and sulfur (S) can be determined based on their positions in the periodic table. Moving from left to right in a period, the atomic radius generally decreases because the number of protons in the nucleus increases, pulling the electrons closer. The correct order for increasing atomic radius is:

1. phosphorus (P)
2. sulfur (S)
3. oxygen (O)
4. potassium (K)