The decay of which radioisotope can be used to estimate the age of the fossilized remains of an insect?
(1) rn-222 (3) co-60
(2) i-131 (4) c-14

|using the periodic tablewarm-upuse the periodic table in the tools bar to answer the following questions.what elemental classification does oxygen belongto? done

While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars

Which description best characterization the motion of particles in a solid