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Property of all alkaline earth metals that increase with their atomic number is:

Option: 1

Solubility of their carbonates


Option: 2

Thermal stability of their sulphates


Option: 3

Ionisation energy


Option: 4

Electronegativity


Answers (1)

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(A), (C) and (D) decrease down the group but (B) increases down the group with increasing metallic character. On moving down the group, the electropositive character of alkaline earth metals increases. Due to this, their thermal stability also increases.

Therefore, option(2) is correct.

Posted by

Ritika Jonwal

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