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The order of energy of orbitals is s lt ...

The order of energy of orbitals is `s lt p lt d lt f `

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STATEMENT-1: For hydrogen orbital energy increases as 1s lt 2s lt 2p lt 3s lt 3p lt 3d lt 4s lt 4p... STATEMENT-2: The orbital with lower (n+l) value has lesser energy and hence filled up first.

If P, Q, R and S are elements of 3rd period of p-block in modern periodic table, among these one element is metal and rest are non-metals and their order of electronegativity is given as: P lt Q lt R lt S Which element is expected to form amphoteric oxide?

CENGAGE CHEMISTRY-ATOMIC STRUCTURE-Exercises True And False
  1. Electron has wave rature as well as particle nature

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  2. The velocity of the electron is maximum in the Bohr's first orbit.

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  3. The order of energy of orbitals is s lt p lt d lt f

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  4. Fe^(2+) is paramagnetic

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  5. The azimuthal quantum, number (l) determines the energy level of the s...

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  6. e//m ratio of proton is greater than that of electron

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  7. p(x) orbital , is symetrical about x -axis

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  8. In an orbital, maximum two electron can be accomodated

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  9. psi^ (2) determine the probability of finding the electron in particul...

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  10. All Emr travel with speed of light

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  11. The s orbital is spectrical in shape

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  12. For ant two electrons in an atom, the set of all four quantum numkber...

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  13. Half-filled and fully-filled orbital orbitals are more stable

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  14. The orbital angular momentum of a p electron is equal to sqrt(2) (h)/(...

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  15. The position and velocity of an can be determined precisely

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  16. The magnetic quantum number gives the orientation of electron clouds ...

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  17. The electron distribution is sheprically symmerical for l = 2

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  18. For hydrogen atom , the energies of the sub-shells 4s ,4p, 4d and 4f a...

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  19. 3s orbital has three nodes

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  20. 4s orbitals has less energy than 3d orbital

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