An ion of a single pure element always has an oxidation number of . A. None of these
B. magnitude equal to its atomic number
C. 1
D. 0

0

Explanation:

pure elements will always possess an oxidation number of 0, regardless of their charge.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl