Question

What was the sensitive, well-insulated tool Willard F. Libby used to date artifacts with known ages? X-ray machine Richter scale Geiger-Müller tubes petri dish

Answer 1

Willard F Libby used Geiger-Müller tubes.

Answer 2

I think the correct answer from the choices listed above would be the third option. The sensitive, well-insulated tool Willard F. Libby used to date artifacts with known ages would be Geiger-Müller tubes. Hope this answers the question. Have a nice day.