Metallic elements are described by their standard electrode potential, fusion enthalpy, atomic size, etc. The alkali metals are characterized by which of the following properties?
(i) High boiling point
(ii) High negative standard electrode potential
(iii) High density
(iv) Large atomic size
NEET Foundation 2022.
Biology Foundation for Class 10.
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The answer is the option (ii) and (iv) Alkali metals have the largest size and low boiling point and density (Since size decreases from left to right across a period). Due to less effective nuclear charge, they can easily lose the electrons from the outermost shell and have high negative standard electrode potential.