Here’s an example using the simplest atom, hydrogen. Carbon-14 is an unstable isotope of carbon that will eventually decay at a known rate to become carbon-12.Radiocarbon dating uses isotopes of the element carbon. Cosmic rays – high-energy particles from beyond the solar system – bombard Earth’s upper atmosphere continually, in the process creating the unstable carbon-14. Because it’s unstable, carbon-14 will eventually decay back to carbon-12 isotopes.
DAUGHTER of former Leeds and Man United player Gordon Mcqueen, Hayley is better known for fronting Sky Sports News and MUTV.
She has had a successful broadcast career, ranging from a stint on Fox Sports to fronting the SSN launch in HD during the 2010/11 season.
An avid Manchester United fan, she lived in Scotland and Hong Kong during her early life, before settling in North Yorkshire. Loving the summer vibes @skysports with @gatherandgather 👌🏼🌞🌈 beats heartburn inducing on-air lunch hidden behind a desk eating it as quickly as possible in ad breaks.
A post shared by Hayley Mc Queen (@mcqueenhayley) on MCQUEEN originally began her TV career as a runner on Richard and Judy, before being spotted by Sky working for Middlesborough FC's channel.
Because the cosmic ray bombardment is fairly constant, there’s a near-constant level of carbon-14 to carbon-12 ratio in Earth’s atmosphere.