In the periodic table, the maximum chemical reactivity is at the extreme left (alkali…
Chemistry · Class 11 · CBSE — Classification of Elements and Periodicity in Properties
In the periodic table, the maximum chemical reactivity is at the extreme left (alkali metals) and extreme right (halogens). Which properties of these two groups are responsible for this?
- Least ionisation enthalpy on the left and highest negative electron gain enthalpy on the right.
- Non-metallic character on the left and metallic character on the right.
- High atomic radii on the left and small atomic radii on the right.
- Highest electronegativity on the left and least electronegativity on the right.
Answer
(A) Least ionisation enthalpy on the left and highest negative electron gain enthalpy on the right.
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