Chemistry, 28.04.2021 05:00 adeline12401
The amount of radioactive carbon-14 in a sample is measured using a Geiger counter, which records each disintegration of an atom. Living tissue disintegrates at a rate of about 13.5 atoms per minute per gram of carbon. In 1977 a charcoal fragment found at Stonehenge, England, recorded 8.2 disintegrations per minute per gram of carbon. Assuming that the half-life of carbon14 is 5730 years and that the charcoal was formed during the building of the site, estimate the date when Stonehenge was built
Answers: 2
Chemistry, 21.06.2019 12:30
A__ is two or more substances that are together in the same place but are not chemically combined
Answers: 1
Chemistry, 22.06.2019 14:30
Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false
Answers: 1
Chemistry, 22.06.2019 19:00
Nan element’s square on the periodic table, the number with the greatest numerical value represents the
Answers: 3
Chemistry, 22.06.2019 19:30
Draw the lewis structure for the trisulfur s3 molecule. be sure to include all resonance structures that satisfy the octet rule.
Answers: 3
The amount of radioactive carbon-14 in a sample is measured using a Geiger counter, which records ea...
Chemistry, 15.12.2020 20:30
History, 15.12.2020 20:30
History, 15.12.2020 20:30
Mathematics, 15.12.2020 20:30
English, 15.12.2020 20:30
English, 15.12.2020 20:30
Mathematics, 15.12.2020 20:30
English, 15.12.2020 20:30