Suppose a new group 7A element is discovered. Photoelectron spectroscopy (PES) reveals that its last two peaks occur at 1610 kJ/mol and 1053 kJ/mol. Calculate the average valence electron energy (AVEE) of this element.

Word equation for k+ h2o yield koh + h2

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.