| energy | 9 |
| frequency | 5 |
| wavelength | 4 |
| travel in straight lines | 0.35 |
| knock electron | 0.35 |
| kill living cells | 0.26 |
| penetrate matter | 0.25 |
| reach earthbound detect… | 0.25 |
| originate in the nucleus | 0.25 |
| produce electron | 0.25 |
| hit the earth's atmosph… | 0.25 |
| block for large radioac… | 0.25 |
| pass through human body | 0.22 |
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| energy | 0.67 |
| frequency | 0.44 |
| same energy | 0.41 |
| produced | 0.81 |
| emitted | 0.64 |
| emitted by the nucleus | 0.55 |
| generated by nuclear re… | 0.39 |
| studied | 0.39 |
| absorbed | 0.38 |
| traced | 0.31 |
| detected | 0.26 |
| undeflected by magnetic… | 0.25 |
| released | 0.25 |
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