Answer:
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Explanation:
The invariant mass of an electron is approximately9. 109×10−31 kilograms, or5. 489×10−4 atomic mass units. On the basis of Einstein's principle of mass–energy equivalence, this mass corresponds to a rest energy of 0.511 MeV.
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D. It has almost no hydrogen ions, therefore it is very basic.
Elements are found on a periodic table.
Answer: Elements
No it do not but it uses gravity and falls fast So. The surface do not affect how fast objects fall. Hope this helps:)