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How can we know that atoms exist and understand them is they are visible?
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Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)
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Which electron configuration represents the electrons in an atom of sodium in the ground state at stp
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Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.
Answers: 2
How can we know that atoms exist and understand them is they are visible?...
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