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The energy released when an electron is ...

The energy released when an electron is added to a neutral gaseous atom is called`"………."`of atom

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The correct Answer is:
Electron gain enthalpy
The energy released when an electron is added to a neutral gaseous atom is called electron gain enthalpy of the atom.
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Energy is released when an electron is added to neutral isolated gaseous atom in its ground state to give monoanion and this is known as EA , or Delta_(eg)H_(1)^(ɵ) . The greater the amount of energy released the greater is the EA . EA is expressed in eV a"atom"^(-1) or kcal or K\kJ mol^(-1) . Select the correct statement (more than one correct)

The energy erleased when an electron is added to the valence shell of a neutral, gaseous, isolated atom is called ___________

Knowledge Check

  • The energy released when an electron is added to a neutral gaseous atom would be highest if the element belongs to

    A
    VII A group
    B
    V A group
    C
    VI A group
    D
    II A group

  • Match the entries of Column I with appropriate entries of Column II and chose the correct option out of the four options (a), (b), (c ) and (d) given at the end of each question. Column I (A) Ionization enthalpy (B) Electron gain enthalpy (C ) Electronegativity (D) Oxidation number Column II (p) Amount of energy released when an extra electron is added to any neutral gaseous atom. (q) The change of partial charge which comes by transfer or partial shifting of electron in any atom during its compound formation. (r ) Minimum amount of energy required to remove an electron from an isolated gaseous atom. (s) Relative tendency of an atom to attracts shared pair of electrons towards itself in molecule.

    A
    A-q, B-r, C-p, D-s
    B
    A-r, B-p, C-s, D-q
    C
    A-s, B-q, C-p, D-r
    D
    A-p, B-q, C-r, D-s

  • The CORRECT decreasing order of energy released when an electron is added to neutral gaseous halogens is _________.

    A
    `F gt Cl Br gt I`
    B
    `Cl gt Br gt F gt I`
    C
    ` F gt Br gt Cl gt I`
    D
    `Cl gt F Br gt I`