Why does a voltaic cell eventually reach a voltage of 0 if it is used long enough?
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a. the anode has been used up and has no electrons left.
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b. the electrons eventually wear out the wire until it can no longer carry a charge.
c. none of these
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d. the cathode has been used up and has no electrons left.

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go from solid to liquid? silver sulfur water lead

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.