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The ionisation energy (IE(1)) of an atom...

The ionisation energy `(IE_(1))` of an atom is defined as the energy needed to remove an electron from gaseous atom in its ground state. The 2nd ionisation energy `(IE_(2))` is the additional energy needed to remove the 2nd electron and so on. The successive ionisation energy of any species is increasing always.
Generally, the first ionisation energy increase along a period. But there are some exceptions. One which is not an exception is:

A

N and O

B

Na and Mg

C

Mg and AI

D

Be and B

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • Generally, the first ionisation energy increases along a period. But there are some exceptions one which is not an exception is

    A
    N and O
    B
    Na and Mg
    C
    Mg and Al
    D
    Be and B

  • Generally the first ionisation energy increases along a period but there are some exceptions one which is not an exception is

    A
    N and O
    B
    Na and Mg
    C
    Mg and Al
    D
    Be and B

  • The ionisation energy (IE_(1)) of an atom is defined as the energy needed to remove an electron from gaseous atom in its ground state. The 2nd ionisation energy (IE_(2)) is the additional energy needed to remove the 2nd electron and so on. The successive ionisation energy of any species is increasing always. Which represents the correct order of first ionisation potential of third period elements?

    A
    `Na gt Mg gt Ai gt Si`
    B
    `Na lt Mg lt AI lt Si`
    C
    `Na lt Si lt AI lt Mg`
    D
    `Na lt AI lt Mg lt Si`

    • Similar Questions

    Explore conceptually related problems

    The ionisation energy (IE_(1)) of an atom is defined as the energy needed to remove an electron from gaseous atom in its ground state. The 2nd ionisation energy (IE_(2)) is the additional energy needed to remove the 2nd electron and so on. The successive ionisation energy of any species is increasing always. In the graph below elements of period given with their ionisation energy. Select the one which represents an alkali metal:

    Ionisation energy increases in the order :

    The ionisation potential of H-atom is 13.6 eV. The energy required to remove an electron from the second orbit of hydrogen is

    If E_(e) is the energy needed to remove an electron from atom and E_(n) be energy needed remove a nucleion, then:

    What is the correct order of 2^(nd) ionisation energy

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