It however does not form oxides, its bond strength is lower.

Like platinum, gold does not form oxides that could assist in bonding.

Rubidium and caesium can form even more complicated oxides than the superoxides.

However, some elements readily form oxides at standard conditions for temperature and pressure; the rusting of iron is an example.

As the air passes through the molten pig iron, impurities unite with the oxygen to form oxides.

Gold also does not form oxides; it adsorbs organic contaminants from the air, but these are easy to remove.

It forms oxides and hydrides in moist air, causing the plutonium sample to expand by up to 70%.

Unless the materials were produced in extremely thin sheets, however, some of them formed oxides with no superconducting ability.

Carbon, which forms volatile oxides, is also depleted.

But in an engine, they can combine to form various oxides of nitrogen, which are pollutants whose emissions are subject to government regulations.