| constant motion | 0.25 |
| orbit the nucleus | 0.63 |
| occupy certain energy l… | 0.42 |
| create separate current | 0.34 |
| absorb photon | 0.34 |
| take different paths | 0.30 |
| feel the attraction | 0.30 |
| occupy first and second… | 0.25 |
| fill their outermost sh… | 0.25 |
| occupy orbital | 0.25 |
| pass through slit | 0.25 |
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| negative charge | 0.42 |
| certain energies | 0.40 |
| spin | 0.25 |
| a thickness of 20 nm | 0.25 |
| two possible orientatio… | 0.25 |
| transferred to another | 0.54 |
| charged | 0.52 |
| shared | 0.52 |
| shared by atom | 0.48 |
| removed | 0.48 |
| bound to the nucleus | 0.44 |
| distributed | 0.37 |
| ejected | 0.34 |
| emitted | 0.34 |
| bound | 0.30 |
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