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Atomic mass of an element is not necessa...

Atomic mass of an element is not necessarily a whole number because :

A

It contains electrons, protons and neutrons

B

It contains allotropic forms

C

It contains isotopes

D

Atoms are no longer considered indivisible

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Knowledge Check

  • The symbol of an element is Une. Its atomic number is

    A
    110
    B
    109
    C
    101
    D
    108

  • The atomic number of an element is 58. it blongs to

    A
    `6^(th)` period , III A group
    B
    `7^(th)` period, III A group
    C
    `6^(th)` period , III B group
    D
    `7^(th)` period, III B group

  • The atomic number of an element is 35. what is the total number of electrons present in all the p-orbitals of the ground state atom of that element ?

    A
    6
    B
    11
    C
    17
    D
    23

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    The atomic mass of an element is 24 and its atomic number is 12. Show how the atom of the element is constituted?

    The atomic number of an element is 17 and its mass number is 37. The number of protons, electrons and neutrons present in the neutral atom are :

    “Compounds are formed when atoms of different elements combine in simple whole number ratios”. This postulate of Dalton’s theory explains-

    If the atomic number of an element is 36, the number of electrons present in the M-shell is

    Atomic and mass numbers can be

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