1.Calculate the number of neutrons present in a carbon 14 nucleus. Radio-carbon dating is used to estimate the age of objects that were once living. All.

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1.Calculate the number of neutrons present in a carbon 14 nucleus. Radio-carbon dating is used to estimate the age of objects that were once living. All living things contain a small amount of radioactive carbon 14. Carbon 14, which has a half-life of 5700 years, decays to carbon 12. By measuring the activity of a sample of dead tissue, its approximate age can be determined. Activity is measured in counts per minute (counts min –1 ). Radio-Carbon Dating 2.State what is meant by the term half-life. NZQA

1.Calculate the number of neutrons present in a carbon 14 nucleus. N o neutrons = mass N o - atomic N o = 8 Radio-carbon dating is used to estimate the age of objects that were once living. All living things contain a small amount of radioactive carbon 14. Carbon 14, which has a half-life of 5700 years, decays to carbon 12. By measuring the activity of a sample of dead tissue, its approximate age can be determined. Activity is measured in counts per minute (counts min –1 ). Radio-Carbon Dating NZQA

Radio-carbon dating is used to estimate the age of objects that were once living. All living things contain a small amount of radioactive carbon 14. Carbon 14, which has a half-life of 5700 years, decays to carbon 12. By measuring the activity of a sample of dead tissue, its approximate age can be determined. Activity is measured in counts per minute (counts min –1 ). Radio-Carbon Dating NZQA State what is meant by the term half-life. The time taken for half a radioactive sample to decay into something else or The time for the activity of a radioactive element to halve