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8 January, 20:31

What are isotopes? What are some examples of common stable isotopes?

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  1. 8 January, 20:43
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    Isotopes are when an element has an extra or a lost electron. Elements work to have a full valence shell (having 8 electrons) Noble gases have full valence shells. Elements in group 1 tend to lose an electron to get this. Elements in group 17 tend to gain an electron to get 8.
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