Chemistry - 8/27 - Radiocarbon Dating, Soap, Quiz - Atomic Symbols

I. Radiocarbon dating - using known information about the half-life of radioactive atoms to determine their age, directly involves our knowlege of complete atomic symbols.

New Radiocarbon Dating Confirms Age of 23,000-Year-Old Human Footprints in New Mexico | Sci.NewsIn 2021, fossilized footprints from White Sands National Park in New Mexico, the United States, were dated to between 21,000 and 23,000 years ago.

Carbon-12 is the stable form of carbon, and makes up almost all of the carbon in the atomosphere (and living things). Carbon-14 is unstable, breaks down (nuclear decay) at a predicable rate, and this allows scientists to determine the age of 'things.'

Compare an atom of carbon-12 to carbon-14 using complete atomic symbols and the information they provide you.

II. Complete your public service message that explains why people should wash their hands.

III. Quiz: Write the complete atomic symbols of three elements given. Identify the number of protons, neutrons, and electrons in each.