| radium(noun, form, study, treatment, science) |
| abnormal operation(noun, expression, form, study, science) |
| absorption of radiation(noun, expression, form, study, science) |
| actinide(noun, form, study, science, field) |
| active substance(noun, expression, study, treatment, science) |
| alpha particle(noun, expression, study, treatment, science) |
| alpha ray(noun, expression, study, treatment, science) |
| artificial radioactivity(noun, expression, study, treatment, science) |
| beta ray(noun, expression, study, treatment, science) |
| cancer radiotherapy(noun, expression, form, study, science) |
| chemistry for nuclear power(noun, expression, study, treatment, science) |
| corrosion of surface(noun, expression, form, study, science) |
| deuterium(noun, study, treatment, science, knowledge) |
| fission(noun, study, treatment, science, knowledge) |
| fusion(noun, study, treatment, science, knowledge) |
| gamma ray(noun, expression, study, treatment, science) |
| half-life(noun, study, treatment, science, knowledge) |
| inactive substance(noun, expression, form, study, science) |
| ionizing radiation(noun, expression, study, treatment, science) |
| isotope(noun, form, study, science, field) |