Home
Class 11
CHEMISTRY
Why the first ionisation energy of carbo...

Why the first ionisation energy of carbon atom is greater than that of boron atom whereas, the reverse is true for the second ionisation energy.

Text Solution

Verified by Experts

The correct Answer is:
[Zeff & half filled config.]
`[C = 1s^(2) 2s^(2) 2p^(2)`
`B = 1s^(2) 2s^(2) 2p^(1)`
Left to right atomic size decreases, `IE_(1) uarr` After the removal of `1e^(-), B` acquire fully filled stable s-orbital configuration, therefore `IE_(2)` of `B gt C`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The first ionization energy of carbon atom is greater than that of boron aton whereas the reverse is true for second ionization energy. below

The first ionization enthalpy of carbon atom is greater than that of boron whereas the reverse it true for the second ionization enthalpy Explain.

Knowledge Check

  • The first ionisation energy of first atom is greater than that of second atom, whereas reverse order is true for their second ionisation energy. Which set of elements is not in accordance to above statement ?

    A
    C, B
    B
    P, S
    C
    B, Be
    D
    Mg, Na

  • The first ionisation energy of first atom is greater than that of second atom, whereas reverse order is true for their second ionisation energy. Which set of elements is in accordance to above statement?

    A
    `CgtB`
    B
    `PgtS`
    C
    `BegtB`
    D
    `MggtNa`

  • The first ionisation energy of first atom is greater than that of second atom, whereas reverse order is true for their second ionisation energy. Which set of elements is in accordance to above statement?

    A
    CgtB
    B
    PgtS
    C
    BegtB
    D
    MggtNa

    • Similar Questions

    Explore conceptually related problems

    Ionisation energy of an atom.

    Give reason for the following : a. The first ioisation eathalpy of carbon carbon is greater than that foboron, whereas the reverse is true fore the second ionisation enthalpy . b. Solid carbon dioxie is known as dry ice . c. Why does not silicon form an analogue fo graphite ?

    The first ionisation energy of magnesium is greater than that of sodium, whereas the recerse is true for second ionisation energy. Explain.

    The first ionization enthalpy of carbon is greater than that of boron, whereas the reverse is true for second ionization enthalpy. Explain.

    The first ionisation energy of beryllium is more than that of boron because

    Home
    Profile