Class 11ChemistryClassification of Elements and Periodicity in PropertiesMix Examples - Classification of Elements and Periodicity in Properties
EasyPoint out the wrong statement: In a given period of the periodic table,the $s$-block element has,in general,a lower value of
- AIonisation energy
- BElectronegativity
- CAtomic radius
- DElectron affinity
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Similar Questions
Among the elements $B$,$Al$,$C$,and $Si$,
$(a)$ which element has the highest first ionisation enthalpy?
$(b)$ which element has the most metallic character? Justify your answer in each case.
$(a)$ which element has the highest first ionisation enthalpy?
$(b)$ which element has the most metallic character? Justify your answer in each case.
Medium
View SolutionThe element with a very high ionization enthalpy but zero electron gain enthalpy is ....
Easy
View SolutionWhich one of the following is a different pair?
Medium
View SolutionMatch the following elements,given as hints to their first,second ionization enthalpies and electron gain enthalpies.
List-$I$ List-$II$ $i)$ Most reactive non-metal $A$. $\Delta H_1=419, \Delta H_2=3051, \Delta_{Eg} H=-48$ $ii)$ Most reactive metal $B$. $\Delta H_1=1681, \Delta H_2=3374, \Delta_{Eg} H=-328$ $iii)$ Least reactive element $C$. $\Delta H_1=738, \Delta H_2=1451, \Delta_{Eg} H=-40$ $iv)$ Metal forming binary halide $D$. $\Delta H_1=3272, \Delta H_2=5251, \Delta_{Eg} H=+48$
| List-$I$ | List-$II$ |
| $i)$ Most reactive non-metal | $A$. $\Delta H_1=419, \Delta H_2=3051, \Delta_{Eg} H=-48$ |
| $ii)$ Most reactive metal | $B$. $\Delta H_1=1681, \Delta H_2=3374, \Delta_{Eg} H=-328$ |
| $iii)$ Least reactive element | $C$. $\Delta H_1=738, \Delta H_2=1451, \Delta_{Eg} H=-40$ |
| $iv)$ Metal forming binary halide | $D$. $\Delta H_1=3272, \Delta H_2=5251, \Delta_{Eg} H=+48$ |
Which of the following set of properties generally decreases along a period?
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