Property of all the alkaline earth metals that increases with their atomic number is :
Correct answer: B. Solubility of their hydroxides
- A. Ionization energy
- B. Solubility of their hydroxides
- C. Solubility of their sulphates
- D. Electronegativity
Explanation
The correct answer is Option B: Solubility of their hydroxides. The property of alkaline earth metals that increases with their atomic number is the solubility of their hydroxides. This trend is observed as you go down the group due to the larger size of the atoms and the corresponding increase in polarizability. The other options are incorrect because ionization energy generally decreases, solubility of sulphates does not exhibit a clear trend with atomic number, and electronegativity decreases as you move down the group.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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