Problem: Rank these elements according to first ionization energy. 

🤓 Based on our data, we think this question is relevant for Professor Marin's class at UCF.

FREE Expert Solution

Ionization energy is the energy required to remove an electron from a gaseous atom or ion.

The trend of the ionization energies of the elements can be observed in the periodic table:

increases going from left to right of a period

decreases going down a group




Given elements:        K, Ca, Ga, Ge, As, Se, Br and Kr

Let’s check their location in the periodic table and see how they fall in the trend mentioned.

  • All of the given elements are on the same period → ionization energy increases going from left to right


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Problem Details

Rank these elements according to first ionization energy.