| 1 | The atom has a nucleus at its core. | |
| 2 | This is the lithium nucleus plus electron. | |
| 3 | So what is the charge on a helium nucleus? | |
| 4 | But the second factor is how far away we are from the nucleus. | |
| 5 | The particles increase the density of clouds by increasing the amount of nuclei contained within. |
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