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The atomic number of an element is deriv...

The atomic number of an element is derived from

A

Number of electrons

B

Number of protons

C

Number of neutrons

D

Number of nucleons

Text Solution

Verified by Experts

The correct Answer is:
B
Atomic number = Number of protons
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DINESH PUBLICATION-ATOMIC STRUCTURE-Revision Questions
  1. Which of the following electronic configuration is not possible accord...

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  2. Time taken by an electrons to complete one revolution in the Bohr orbi...

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  3. The atomic number of an element is derived from

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  4. One electron species having ionization enegry of 54.4 eV is

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  5. The correct set of quantum numbers (n, l and m) respectively of the un...

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  6. Which of the following sets of quantum numbers is correct for an elect...

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  7. Consider the ground state Cr atom (Z = 24). The number of electron w...

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  8. The wavelength of the radiation emitted , when in a hydrogen atom elec...

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  9. Effective magentic moment of Sc^(3+) ion is

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  10. The relationship between energy E, of the radiation with a wavelength ...

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  11. The energy of second Bohr orbit of the hydrogen atom is - 328 k J mol^...

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  12. in a multi- electron atom ,which of the following orbitals described ...

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  13. Which of the following statement is correct in relation to the hydroge...

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  14. What is the packet of enegry called ?

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  15. The atomic numbers of elements X,Y,and Z are 19,21, and 23, respective...

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  16. An electron is moving in Bohr's fourth orbit. Its de Broglie wavelengt...

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  17. The correct order of the number of unpaired electrons in the ions Cu^(...

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  18. Calculate the magnetic moment of a divalent ion in aqueous solution if...

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  19. The most probable radius (in pm) for finding the electron in He^(+) is...

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  20. When potassium metal is exposed to violet light

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