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Atomic number of an element represents:...

Atomic number of an element represents:

A

Number of neutrons in the nucleus

B

Number of protons in the nucleus

C

Atomic weight of element

D

Valency of element

Text Solution

Verified by Experts

The correct Answer is:
B
Atomic number is defined as the number of protons in the nucleus.
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Knowledge Check

  • If W is atomic weight and N is the atomic number of an element, then

    A
    Number of `e^(-1)` =W-N
    B
    Number of `._0n^1` =W-N
    C
    number of `._1H^1`=W-N
    D
    Number of `._0n^1`=N

  • The atomic number of an element is equal to the number of

    A
    protons
    B
    neutrons
    C
    electrons
    D
    deutrons

  • The atomic number of an element is determined by _____.

    A
    adding the number of electrons & protons in one atom
    B
    the number of neutrons in one atom
    C
    the valency of the element
    D
    the number of protons in one atom
    • ERRORLESS-STRUCTURE OF ATOM-NCERT BASED QUESTIONS (Atomic Number, Mass Number, Atomic Species)
    1. Atomic number of an element represents:

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    2. An atom has the electronic configuration of 1s^2, 2s^2 2p^6, 3s^2 3p^6...

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    3. If the atomic weight of an element is 23 times that of the lightest el...

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    4. The number of electrons in the nucleus of C^(12) is

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    5. The number of neutrons in oxygen-18 are

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    6. Nitrogen has an atomic number of 7 and oxygen has an atomic number of ...

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    7. The nitride ion in lithium nitride is composed of

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    8. The atomic number of an element is 17. The number of orbitals containi...

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    9. The nucleus of tritium contains

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    10. The atomic number of an element is 35. What is the toal number of elec...

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    11. Atom consist of electrons , protons and neutrons . If the mass attribu...

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    12. The charge of an electron is -1.6 xx10^(-19) C. The value of free char...

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    13. Nucleus of an element contains 9 protons Its valency would be :

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    14. The total number of neutrons in dipositive zinc ions with mass number ...

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    15. The nucleus of an atom is spherical. The relation between radius of ...

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    16. Chlorine exists in two isotopic forms Cl-37 and Cl-35 but its atomic m...

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    17. An ion has a charge of -1 . It has eighteen electrons and twenty neutr...

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    18. CO has same electrons as of the ion that is isoelectronic with CO is.

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    19. Which one of the following constitutes a group of the isoelectronic sp...

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    20. In which one of the following , the number of protons is greater than ...

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