chemical formula

noun 0.671

formula unit

noun 0.664

atomic theory

noun 0.646

atomic number

noun 0.635

molecular formula

noun 0.620

atomic

noun 0.618

atom

noun 0.618

empirical formula

noun 0.609

general formula

noun 0.604

formula

noun 0.588

atomic mass

noun 0.583

average atomic mass

noun 0.578

atomic weight

noun 0.564

atomic nucleus

noun 0.562

structural formula

noun 0.561

atomic mass unit

noun 0.559

relative atomic mass

noun 0.554

atomicity

noun 0.552

atomics

noun 0.552

chemical element

noun 0.534

atomist

noun 0.530

chemical symbol

noun 0.528

alpha particle

noun 0.522

onium

noun 0.521

mass number

noun 0.513

atomism

noun 0.510