How does the atomic radii and ionisation enthalpy vary across a period – InterviewSolution

1.	How does the atomic radii and ionisation enthalpy vary across a period?
Answer» The atomic or ionic radii decreases across a period with increase in atomic number and increase in the effective nuclear charge (Z_eff). The ionisation enthalpy also increases across a period with increase in atomic number. This is due to addition of electrons to the same shell, while moving across a period. Inert element at the end of period has the highest value of ionisation enthalpy.

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