Chemistry, 28.01.2020 08:31 juliashalnev
Based on its location on the periodic table, which element would be most likely to form a negative ion?
a. aluminum (al)
b. copper (cu)
c. sodium (na)
d. fluorine (f)
Answers: 3
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Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
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Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils. the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.
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Based on its location on the periodic table, which element would be most likely to form a negative i...
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