Problem: From the following pairs select the atom with the larger first ionization energy:Cl, Ar; Be, Ca; K, Co; S, Ge; Sn, Te(a) Cl; Be; Co; S; Sn(b) Ar; Be; K; Ge; Te(c) Ar; Be; Co; S; Te(d) Ar; Be; Co; S; Sn(e) Ar; Be; K; S; Te

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Establish the ionization energy trend and determine which among the pairs of atom have larger first ionization

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

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Problem Details

From the following pairs select the atom with the larger first ionization energy:

Cl, Ar; Be, Ca; K, Co; S, Ge; Sn, Te

(a) Cl; Be; Co; S; Sn

(b) Ar; Be; K; Ge; Te

(c) Ar; Be; Co; S; Te

(d) Ar; Be; Co; S; Sn

(e) Ar; Be; K; S; Te