When comparing the two elements P and I , the element with the higher first ionization energy is PP When comparing the two elements P and I , the element with the higher first ionization energy is blank based on periodic trends alone. based on periodic trends alone.

Explanation:

The first ionization energy varies in a predictable way across the periodic table. The ionization energy decreases from top to bottom in groups, and increases from left to right across a period. Thus, helium has the largest first ionization energy, while francium has one of the lowest.

- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).

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