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The IE of Be is "" than that of B....

The `IE` of `Be` is `"____"` than that of `B`.

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The IE_(1) of Be is greater than that of B. [T/F]

The IE of Be is greater than that of B.

Assertion (A) : The first IE of Be is greater than that of B Reason (R ) : 2p orbitals is lower in energy than 2s

The IE_(1) of C atom is greater than that of boron (B) atom, whereas the reverse is true for IE_(2) . Explain?

Assertion(A) : IE_(2) of C is greater than that of B . Reason (R ): Due to penetration effect.

Assertion (A): Potassium is a stronger reducing agent than sodium. Reason (R ): IE of potassium is less than that of sodium.

Explain the following question (based on ionisation energy): (a) Why IE_(1) of N is higher than that of O atom ? (b) Why IE_(1) of Mg is higher than that of Al atom? (c ) Why IE_(1) of C is greater than that of B atom whereas IE_(2) is reverse ? (d) In general, IE increases along the period (rarr) . Explain why the IE_(2) of Cr is higher than that of Mn (Manganese)? (e) The IE_(1) and IE_(2) of K are 420 and 3050 kJ mol^(-1) respectively and those of Ca are 560 and 1140 kJ mol^(-1) respectively. Compare their values and comment on the differences. (f) The IE of Li , Be and C are 5.5, 9.3 and 11.3 eV . What would be the case and explain. i. K, Ca,Se , ii. N,O,F iii. K^(o+), Ar,Cl^(ɵ) , iv Fe, Fe^(2+), Fe^(3+) v. C,N,O , vi. Cu,Ag,Au vii. K, Rb, Cs , viii Be, B, C ix. Na, Mg, Al (h) Explain why Fe^(2+) is more easily oxidised to Fe^(3+) than Mn^(2+) to Mn^(3+) . (i) Explain whether IE_(1) of two isotopes of same element would be same or different. (j) What are the factors on which IE of main group elements tends to decrease douwn the group (darr) .

CENGAGE CHEMISTRY-PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY-Exercises (Fill In The Blanks)
  1. IUPAC name for the element with Z = 117 is "" and its symbol is " ".

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  2. In the long form of the perodic table, physical and chemical propertie...

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  3. The property used by Mendeleev to classify the elements in his periodi...

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  4. The elements which constitute 5f-block are called " " with atomic numb...

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  5. Elements of s and p blocks are collectively called ""

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  6. The group all members of which are in gaseous state under ordinary con...

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  7. Lather Meyer drew a graph showing the relation between atomic "" and ...

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  8. Ionic radii "" with increases in atomic number in a period and "" in...

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  9. The electron gain enthalpy of oxygen is "" that of sulphur.

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  10. On Mulliken scale the average of IP and EA is known as "" .

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  11. On the Pauling's EN scale, the element next to F is ""

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  12. The IE of Be is "" than that of B.

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  13. The bond angle in SO(4)^(2-) ion is "" .

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  14. The angle between two covalent bonds is maximum for (CH(4), H(2)O, CO(...

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  15. Second element of group 1 shows diagonal relationship with the first e...

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  16. The EN of the elements C, N, Si and P increases in the order of "" .

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  17. The decreasing ordr IE for elements Li, Be, C B is "" .

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  18. The type of magnetism exhibited by [Mn(H(2)O)(6)]^(2+) ion is "" .

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  19. Among the ions Cl^(ɵ), S^(2-) and Na^(o+), the largest ion is "" .

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  20. The inner electrons are shielded to a "" extent than the outer electro...

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