What element does 'O' represent on the periodic table?

The letter 'O' on the periodic table represents the element Oxygen. This element is vital for life on Earth, as it is a major component of the air we breathe and is used by living organisms in the process of respiration. Oxygen is a non-metal and is present in the second period of the periodic table, with an atomic number of 8.

Oxygen is known for its reactivity, forming compounds with nearly all other elements, which is a crucial aspect of various biological and chemical processes. It also plays an essential role in combustion and is a key player in many environmental processes.

Gold, Osmium, and Oganesson are different elements with distinct properties. Gold is represented by 'Au' and is known for its precious metal characteristics. Osmium, denoted by 'Os', is a dense transition metal, while Oganesson, symbolized as 'Og', is a synthetic element that is radioactive and has very limited availability.