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Compare the ionization energies of each pair of atoms. Enter the symbol for the atom with the larger ionization energy.
(If both atoms would be expected to have the same ionization energy, enter the word same.)
Pairs Symbol of atom with the larger ionization energy
Cl and I
Na and K
F and Br

Respuesta :

Answer: 1. I

2. Na

3. F

Explanation:

Ionization energy is the energy required to remove the most loosely bound electron from an isolated gaseous atom.

In a group, the ionization energy decreases as we move down a group as the size increases. The electrons get added to the next shell. Thus the valence electron moves far from the nucleus and thus less energy is required to remove the valence electron.

1. Cl and I: Cl will have larger ionization energy as I lies lower in the group.

2. Na and K : Na will have larger ionization energy as K lies lower in the group

3. F and Br : F will have larger ionization energy as Br lies lower in the group.

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