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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: - For an endothermic reaction, energy of activation is Ea and enthalpy of reaction
- The electronic configuration of transition elements is exhibited by
- If principal quantum number n=4, the total number of orbitals having l=3 is
- The electron was shown experimentally to have wave properties by
- The wavelength correspending to maximum enregy for hydrogen is 91.2 nm
Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For an endothermic reaction, energy of activation is Ea and enthalpy of reaction
- The electronic configuration of transition elements is exhibited by
- If principal quantum number n=4, the total number of orbitals having l=3 is
- The electron was shown experimentally to have wave properties by
- The wavelength correspending to maximum enregy for hydrogen is 91.2 nm
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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