Tree ring dating offers over 1,000 years of clues in dates of artifacts from the American Southwest.Radiocarbon dating provides additional clues necessary for absolute dating.
It does burn in oxygen, and if you can pass the combusted gas through limewater, the carbon dioxide will turn the limewater milky by producing calcium carbonate.
It is impossible to predict when a given atom will decay, but given a large number of similar atoms, the decay rate on average is predictable.
This predictable decay is called the half-life of the parent atom, the time it takes for one half of all of the parent atoms to transform into the daughter.
Absolute dating is a method of determining the specific date of a paleontological or archaeological artifact or location based on a specific time scale or calendar.
Scientists base absolute dating on measurable physical or chemical changes or on written records of events.