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The atoms of different elements having s...

The atoms of different elements having same mass number but different atomic number are known as isobars.
The sum of protons and neutrons, in the isobars is always different.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
C
( c) The assertion that the isobars are the atoms is different elements having same mass number but different atomic number, is correct but reason is false because atomic mass is sum of number of neutron and protons which should be same for isobars.
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Knowledge Check

  • Assertion : The atoms of different elements having same mass number but different atomic numbers are known as isobars. Reason : The sum of protons and neutrons, in the isobars is always different.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

  • The atoms of the elements having same mass number but different atomic number are called-

    A
    Isotopes
    B
    Isobars
    C
    Isotones
    D
    Isomers

  • The atoms of the elements having same atomic number but different mass number are called -

    A
    Isobar
    B
    Iso electronic
    C
    Isotopes
    D
    Isotones

    • Similar Questions

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    The atoms with same mass number but different atomic number are called

    Atoms of different elements having the same mass number are known as _____

    Atoms of different elements having the same number of neutrons but differnet atomic numbers are called

    Assertion (A): Two atoms of different elements having same mass number but different atomic numbers are called isobars. Reason (R): Atomic number is the number of protons present and mass number is the total number of protons and neutrons present in a nucleus.

    Elements which have same atomic mass but different atomic number are called

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