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Second I.E. is always more than first I....

Second I.E. is always more than first I.E., why?

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Second I.E. of Na is more than second IE of Mg. Why?

I.E. for cation is more than neutral atom. Why?

Statement-I : (I.E.)_(n) of an atom is always greater than (I.E.)_(n-1) (n is integer number) Statement-II : ne//Z ratio decreases on successive elimination of electrons.

Why second ionization enthalpy is always higher than the first ionisation enthalpy for every element?

The second ionisation energy is always higher than the first ionisation energy because the

In the alpha -decay process occuring in different types of nuclei at rest (i) the K.E. of the daughter nucleus is always greater than the K.E. of the alpha -particle (ii) the K.E. of the daughter nucleus is always less than the K.E. of the alpha -particle (iii) the magnitudes of the linear momenta of the alpha -particle and the daughter nucleus are always equal (iv) the daughter nucleus is always in a stable state

Statement-1: (I.E.)_(n) of an atom is always greater than (I.E)_(n-1) (n in I^(+)) Statement-2: ne/Z ratio decreases on successive elimination of electrons.

Maximum I.E. Is for

A's weight is more than the weight of C, and A has the second highest weight. E weights more than A.B weight more than D. Who is the heaviest?

CBSE COMPLEMENTARY MATERIAL-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -1 - MARK QUESTIONS
  1. Name the element which exhibit diagonal relationship with Be.

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  2. Which group elements are known as halogens?

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  3. The element with ns^2, np^5 configuration is non-metal or metal?

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  4. Define van der Waal's radius.

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  5. Write the outer shell configuration of atomic number 31.

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  6. Find the group number and period number of element having atomic numbe...

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  7. Arrange O^(2-), O^(-1) , O in decreasing radius (size).

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  8. Why do noble gases have bigger atomic size than halogens?

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  9. Why first electron gain enthalpy of sulphur is more negative then oxyg...

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  10. Write general outer electronic configuration of 4f series elements.

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  11. Write two isoelectronic species with Br (35)

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  12. Show that 4th period can have maximum 18 elements in it.

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  13. Second I.E. is always more than first I.E., why?

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  14. Electronegativity of F gt Cl gt Br gt I , why?

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  15. Arrange F and Cl in terms of increasing chemical reactivity?

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  16. Second I.E. of Na is more than second IE of Mg. Why?

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  17. I.E. for cation is more than neutral atom. Why?

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  18. Define diagonal relationship with the help of an example.

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  19. Out of O^(-) and O , which has more negative electron gain enthalpy?

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  20. Mention any two anomalous properties of second period elements.

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