radiocarbon

noun 0.734

carbon dating

noun 0.681

carbon

noun 0.670

carbon-12

noun 0.657

radiocarbon dating

noun 0.640

carbon dioxide

noun 0.577

inorganic carbon

noun 0.566

carbon tetrachloride

noun 0.560

caesium-137

noun 0.559

fourteenth

noun 0.559

black carbon

noun 0.555

radioactive

noun 0.545

activated carbon

noun 0.544

carbon nanotube

noun 0.541

carbon monoxide

noun 0.536

carbon cycle

noun 0.535

carbon oxide

noun 0.533

carbo

noun 0.533

chlorofluorocarbon

noun 0.529

carbon fiber

noun 0.519

carbonate

noun 0.518

nitrogen

noun 0.513

carbonaceous chondrite

noun 0.509

charcoal

noun 0.508

carbon steel

noun 0.506

isotope

noun 0.505

carbon cost

noun 0.505

carbon-carbon bond

noun 0.504

neutron

noun 0.503

carbonium ion

noun 0.502

radionuclide

noun 0.501

radioisotope

noun 0.500