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anqie37

  • one year ago

All elements are the same everywhere and all atoms of the same element are also the same. Suppose you make contact with an alien race who want to share their scientific knowledge with you. They have elements too, but they classify them by the number of neutrally charged particles. They present you with their element, "Gacainium", which has 117 neutrally charged particles. Taking a sample back to the lab, you find that the mass number of the element Gacainium to be 195. What is the Earth equivalent of this element the aliens have presented to you? please helpp ! own words

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  1. ComeAlongP0nd
    • one year ago
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    This should be in a different group.

  2. Callisto
    • one year ago
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    Please post it in the Chemistry group. Thank you. Link to the Chemistry group: http://openstudy.com/study#/groups/Chemistry

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