Alkali metals in each period have — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

Alkali metals are the first group elements and placed in the first row of the periodic table The following trend is followed by the periodic table as mentioned below- Atomic Size- Across the period, the number of electrons and effective nuclear charge increases in the periodic table which results in the decrease in atomic size. Thus 1st option is incorrect. Alkali metals are larger compared to other elements in that period. Ionization Enthalpy-Across the period, Ionization energy increases across the period as the effective nuclear charge increases and it does not release electrons from its ou