Both alkali metals and alkaline earth metals are `s-`block elements. They resemble each other in many respects but still there are certain dissimilarities in their properties due to different number of electrons in the valence shell, different atomic radii, ionisation enthalpy, electronegativity, etc. Like lithium, Be also differs from rest of the alkaline earth metals on account of its small atomic size and high electronetativity. `Be^(2+)`ion is very small and exerts a high polarising effect on any anion associated with it. Which of the following statements are true for group `2` elements?A. Lattice enthalpy of oxides, carbonates, fluorides decreases form `Be` to `Ba`.B. All form nitrides in air.C. The solubility of the hydroxides increases from `Be` toe `Ba`.D. All are correct.

Both alkali metals and alkaline earth metals are `s-`block elements. T

1.	Both alkali metals and alkaline earth metals are `s-`block elements. They resemble each other in many respects but still there are certain dissimilarities in their properties due to different number of electrons in the valence shell, different atomic radii, ionisation enthalpy, electronegativity, etc. Like lithium, Be also differs from rest of the alkaline earth metals on account of its small atomic size and high electronetativity. `Be^(2+)`ion is very small and exerts a high polarising effect on any anion associated with it. Which of the following statements are true for group `2` elements?A. Lattice enthalpy of oxides, carbonates, fluorides decreases form `Be` to `Ba`.B. All form nitrides in air.C. The solubility of the hydroxides increases from `Be` toe `Ba`.D. All are correct.
Answer» Correct Answer - D all options given are correct.

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