How different isotopes of Helium are similar and different.

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How different isotopes of Helium are similar and different.

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Khánh Gia 5 years 2021-07-13T08:55:21+00:00 1 Answers 25 views 0

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  1. sori
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    2021-07-13T08:56:41+00:00
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    Answer:

    i have no clue

    i just need points

    Explanation:

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )