1.

Explain the various periodic trends in the alkali metals down the group

Answer»

Solution : In alkali metals, as we move down the group
(i) REACTIVITY increases
(ii) atomic radii i increases
(iii) SCREENING effect increases
(iv) tendency to formcation by loosing OUTER electron increases
(v) melting point and boiling tendency nd boiling point DECREASES
ionization enthalpy decreases and
(vii) density increases


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