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In the term trace element, the word trace means that ___A. the element improves health but is not essential for the organism's long-term survival. B. the element can be used as a label to trace atoms through an organism's metabolism. C. the element is required by the body in very small amounts. D. the element is very rare on Earth.
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Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.
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In the term trace element, the word trace means that ___A. the element improves health but is not es...
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