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For alkali metals, which one of the following trends is incorrect
Options
(a) Hydration energy: Li > Na > K > Rb
(b) Ionization energy: Li > Na > K > Rb
(c) Density: Li< Na < K < Rb
(d) Atomic size: Li < Na < K < Rb
Correct Answer:
Density: Li< Na < K < Rb
Explanation:
Density gradually increases on moving down from Li to Cs. Potassium is, however, lighter than sodium. The abnormal value of potassium is due to unusual increase in atomic size, i.e., atomic volume.
Related Questions: - Four successive members of the first row transition elements are listed below
- Deuterium nucleus contains
- The number of electrons involved in the reduction of one nitrate ion
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- Which of the following metal is not ferromagnetic
Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Four successive members of the first row transition elements are listed below
- Deuterium nucleus contains
- The number of electrons involved in the reduction of one nitrate ion
- For an endothermic reaction, energy of activation is Ea and enthalpy of reaction
- Which of the following metal is not ferromagnetic
Topics: S and Some P Block Elements (157)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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