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Mass number is the sum of the number of ...

Mass number is the sum of the number of protrons in an atom.

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PEARSON IIT JEE FOUNDATION-ATOMIC STRUCTURE-Concept Application Level-1
  1. Thomoson could successfully explain the electrical neutrality of an at...

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  2. High pressure and low voltage should be maintained in the discharge tu...

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  3. Mass number is the sum of the number of protrons in an atom.

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  4. Cathode rays deflect in the presence of magnetic field.

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  5. The discovery of proved that atom in divisible.

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  6. The maximum number of electrons present in 5th shell is .

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  7. Electron present in orbit cannot lose its energy.

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  8. The fundamental particle present in anode rays produced by ""(1)H^(1) ...

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  9. The electrode connected to the negative teminal of a battery in a disc...

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  10. The specific charge value of anode rays produced by is the maximum.

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  11. The sum of protons and neutrons is same in .

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  12. Which of the following particles is largely responsilbe for the chemic...

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  13. ""(8)X^(16) and ""(8)X^(17) represent

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  14. The isotope with zero neutrons is

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  15. Two elements X and Y have 6 and 7 electrons in their N-shell and M-she...

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  16. The number of valence electrons in ""(4)X^(8) atom is

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  17. The number of valence electrons in ""(20)^(40)X is

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  18. Two elements A, B have 14 and 8 electrons in M and N shells respective...

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  19. According to Thomson

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  20. ""(x)^(y)A, (x)^(y+1)A are two isotopes of element A. Difference betwe...

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