Chemistry, 24.10.2020 05:50 valeriam24
A scientist in a lab creates a mystery element with an atomic mass of approximately 19. It is more electronegative than lithium or sodium, and its atomic radius is smaller than beryllium. The scientist thinks it must be the alkali metal potassium. Do you agree? Use claim, evidence, and reasoning to support your answer.
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A scientist in a lab creates a mystery element with an atomic mass of approximately 19. It is more e...
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