What is true when an element is oxidized?

1. Reacts with oxygen

2. Loss electrons

3. Reduce the element that oxidizes it.

Explanation:

Oxidation is a phenomenon in which an element or compound reacts with oxygen, producing an oxide (in case of metals).

Although strictly speaking, oxidation refers to the chemical process that involves the loss of electrons by a molecule, atom or ion.

If this element participate in a redox reaction when oxidized it is reducing the element that oxidizes it.