MAXIMUM PUBLICATION-CLASSIFICATION OF ELEMENTS & PERIODICITY IN PROPERTIES-EXAMPLE
- In transition elements the incoming electron occupies (n-1)d sublevel ...
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- The arguments made by two students are as given: Student 1 : 'Hydrogen...
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- Match the following:
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- a) Which one has greater size, Na or K? b) Justify your answer.
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- The general cheracteristics of a particular block of elements is as gi...
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- The variation in electron gain enthalpies of elements is less systemat...
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- Some elementS are given. Li, Cs, Be, C, N, O F, l, Ne, Xe. a) Arrange...
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- a) What is meant by atomic radius? b) Explain covalent radius. c) Wr...
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- Consider the statement: 'The element with 1s^2 configuration belongs t...
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- The properties of elements are a periodic function of their atomic wei...
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- a) Define ionisation enthalpy. b) IE1< IE2 < IE3 What is meant by th...
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- Say whether the following are true or false: a) On moving across a pe...
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- a) On moving down a group what happens to electron gain enthalpy? b) ...
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- Electron gain enthalpy is an important periodic property. a) What is m...
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- a) The electron gain enthalpies of Be and Mg are positiVe. What is you...
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- During a group discussion a student argued that ionization enthalpy de...
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- a) Which of the following has higher first ionization enthalpy, N or O...
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- Electronegativity differs from electron gain enthalpy. a) Do you agre...
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- Ionization enthalpy is an important periodic property. a) What is the...
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- The second period elements show anomalous behaviour. a) Give reason. ...
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