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Electronic conifguration 1s^(2)2s^(2)2p^...

Electronic conifguration `1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(9)` indicates-

A

Metal cation

B

non-metal atom

C

non-metal anion

D

metal atom

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The correct Answer is:
A
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CHHAYA PUBLICATION-CLASSIFICATION OF ELEMENTS & PERIODICITY IN PROPERTIES-MCQ HOTSPOT
  1. Choose the correct set of ionic radii among the following-

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  2. Electron affinity (kJ*mol^(-1)) of three halogens X, Y, Z are -349, -3...

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  3. The correct order of ionic radii is-

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  4. The ionisation enthalpy of lithium is 520 kJ*mol^(-1). The amount of e...

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  5. Electronic conifguration 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(9) indicate...

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  6. In the periodic table metals used as catalyst belongs to-

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  7. Oxide of an element having configuration [Ne]3s^(1) is-

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  8. Which one of the following orders is not in accordance with the prope...

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  9. In which of the following process energy is absorbed-

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  10. In which of the following pairs do both the metals have identical valu...

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  11. In which of the following pairs the difference between the covalent ra...

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  12. The increasing order of the first ionisation enthalpies of the element...

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  13. Which group of atoms have nearly same atomic radius-

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  14. The lattice energy is highest for-

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  15. The correct order of lattice energy for lithium halides is-

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  16. An element with atomic number 20 is most likely to combine with the el...

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  17. K^(+),Cl^(-),Ca^(2+),S^(2-) ions are isoelectronic. The decreasing ord...

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  18. Which of the following oxides of Cr is amphoteric-

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  19. The element with atomic number 118 has been discovered recently. In th...

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  20. In the relation, Electronegativity=(0.359Z(ef f))/(r^(2))+0.744, r is-

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