carbon - 14 is the typical radioisotope used to date materials; however, it has a limitation to 40,000…

carbon - 14 is the typical radioisotope used to date materials; however, it has a limitation to 40,000 years. a scientist who wants to date materials older than 40,000 years would most likely use which radioisotope?\no uranium - 238\no rubidium - 91\no iodine - 131\no cobalt - 60

carbon - 14 is the typical radioisotope used to date materials; however, it has a limitation to 40,000 years. a scientist who wants to date materials older than 40,000 years would most likely use which radioisotope?\no uranium - 238\no rubidium - 91\no iodine - 131\no cobalt - 60

Answer

Brief Explanations:

Uranium - 238 has a very long half - life and is used for dating very old materials. Rubidium - 91, iodine - 131 and cobalt - 60 are not typically used for dating ancient materials. Iodine - 131 is used in medical imaging related to the thyroid, cobalt - 60 is used in radiation therapy and industrial radiography, and rubidium - 87 (not rubidium - 91 which is not a common dating radioisotope) is used in some dating but uranium - 238 is more suitable for extremely old materials.

Answer:

uranium-238