Periodic TableMedium
Question
The correct trend in the first ionization enthalpies of the elements in the $3^{\text{rd~}}$ period of periodic table is:
Options
A.$Al < Si < S < P < Cl$
B.$Al < S < P < Si < Cl$
C.$Si < S < Al < P < Cl$
D.$S < Si < Al < P < Cl$
Solution
In general on moving from left to right in a period ionization energy increases as $\mathbf{Z}_{\text{eff~}}$ increases.
(Ionisation energy of phosphorus is more because of half filled stable configuration)
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