The properties of oxygen, like its appearance and freezing point, are determined by the arrangement and interactions of its atoms and molecules. Here's a breakdown:

* Appearance: Oxygen is colorless, odorless, and tasteless in its gaseous state. This is due to the electronic configuration of its atoms. Oxygen atoms have a specific arrangement of electrons, and their interactions with light determine that they don't absorb or reflect visible light, making them appear transparent.

* Freezing Point: The freezing point of oxygen is -218.79 °C (-361.82 °F). This is determined by the strength of the intermolecular forces between oxygen molecules. Oxygen molecules are held together by weak van der Waals forces. At very low temperatures, these forces become strong enough to overcome the molecules' kinetic energy, causing them to solidify into a liquid.

In summary:

* Appearance: Determined by the electronic configuration of oxygen atoms and their interaction with light.

* Freezing Point: Determined by the strength of intermolecular forces between oxygen molecules.

These properties are fundamental characteristics of oxygen and are directly related to the nature of its atoms and how they interact.