Your answer should be C.) +2. "All the elements in Group 2 have two electrons in their valence shells, giving them an oxidation state of +2."
Credits: https://chem.libretexts.org/Core/Inorganic_Chemistry/Descriptive_Chemistry/Elements_Organized_by_Blo...
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Cobalt because it has an atomic mass of 58 and 33 neutrons.
Answer: 833.3mmHg
Explanation:Please see attachment for explanation
Answer:
what kind of plates?
Explanation:
you didn't put enough info