The voltaic cell x(s) | x2+(1.0 M) || Cu2+(1.0 M) | Cu(s) was constructed and its cell potential was measured as 1.97 V. a. Which half-cell produces this cell potential?

The half-cell that produces this cell potential is reduction cell potential; x(s) | x2+(1.0 M)

Explanation:

Positive potential is associated with reduction or cathodic half reaction:

x(s) | x2+(1.0 M):

Negative potential is  associated with oxidation or Anodic half reaction:

Cu2+(1.0 M) | Cu(s): =

The given cell potential is measured as +1.97 V,

Therefore, the half-cell that produces this cell potential is reduction cell potential; x(s) | x2+(1.0 M).

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

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