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State Modern periodic law....

State Modern periodic law.

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State the modern periodic law.

(a) state the modern periodic law. (b) Describe in brief the main features of the long form of the periodic table.

What is the basic difference in approach between the Mendellev's peridic law and the Modern periodic law?

Why is the atomic number the basis of the modern periodic law ?

As per the modern periodic law the physical and chemical properties function of their

CBSE COMPLEMENTARY MATERIAL-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -3 - MARKS QUESTIONS
  1. Account fot the following: Halogens have very high negative electron...

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  2. Account fot the following: The electron gain enthalpy of Cl (Z = 17 ...

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  3. The ionisation energy of nitrogen is more than that of oxygen because

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  4. What are the d- block elements? Write any four properties of d - block...

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  5. State Modern periodic law.

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  6. Explain the following: Electro-negativity

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  7. Explain the following: Shielding effect

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  8. Among the second period elements the actual ionisation enthalpies are ...

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  9. Among the second period elements the actual ionisation enthalpies are ...

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  10. What do you understand by the isoelectronic species ? Name a species t...

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  11. What do you understand by the isoelectronic species ? Name a species t...

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  12. What do you understand by the isoelectronic species ? Name a species t...

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  13. What do you understand by the isoelectronic species ? Name a species t...

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  14. Show by chemical with water that Na(2) O is a basic oxide and CI(2)O(2...

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  15. Name a species that will be isoelectronic with each of the following a...

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  16. Ca^(2+) ion is isoelectoronic with

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  17. The first ionisation enthalpy of group 13 elements are : Explain ...

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  18. The first (IE1) and the second (IE2) ionisation enthalpies (kJ mol^(...

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  19. The first (IE1) and the second (IE2) ionisation enthalpies (kJ mol^(...

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  20. The first (IE1) and the second (IE2) ionisation enthalpies (kJ mol^(...

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