To INFJs, the world is a place full of inequity â but it doesnât have to be. No other personality type is better suited to create a movement to right a wrong, no matter how big or small. INFJs just need to remember that while theyâre busy taking care of the world, they need to take care of themselves, too.
Solid copper can be described as the arrangement of copper atoms in a face-centered-cubic (fcc) configuration. A copper atom is found at each corner and in the center of each face of a cube as depicted in Figure 1. This is the unit cell which is repeated in three dimensional space to make up the crystal structure of the metal. The atoms are held in place in the structure by the energy of the atomic attractions between them.
When copper is oxidized by a combination of air, humid and finely divided acid and salts in the air, then a so-called patina of copper is formed. This is a basic copper (II) carbonate/sulfate mix, which has a cyan color. The reason that the color changes is that a chemical compound of copper is formed. Copper itself is a metallic element. Compounds of elements can have totally different properties than the elements themselves (e.g. look at hydrogen and oxygen, these are gasses at room temperature, while the compound water, made of both elements is a liquid at room temperature). A similar thing you see with iron.