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Match the correct atomic radius with the...

Match the correct atomic radius with the element.

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As a we move from left to right in a period nuclear charge increases and hence the atomic radius decreases Therefore atomic radius of Be = 111, B ,=88 , C = 77, N = 74 and O = 66 pm.
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Match the correct radius with the element:

Ionisation enthalpies of elements of second period are given below Ionisation enthalpy/k cal mol^(-1) , 520,899,801,1086,1402,1314, 1681, 2080. Match the correct enthalpy with the elements and complete the graph given in the figure. Also write symbols of elements with their atomic number.

Knowledge Check

  • Select the correct atomic radius order :-

    A
    `N gt O gt F gt Ne `
    B
    `N lt O lt F lt Ne `
    C
    `N gt O gt F lt Ne `
    D
    `N lt O lt F lt Ne `

  • The increasing order of atomic radius for the elements Na,Rb,K and Mg is

    A
    `Na lt K lt Mg lt Rb`
    B
    `K lt Na lt Mg lt Rb`
    C
    `Na lt Mg lt K lt Rb`
    D
    `Rb lt K lt Mg lt Na`

  • The correct increasing order of the atomic radii of the elements oxygen, fluorine and nitrogen:

    A
    `O,F,N`
    B
    `N,F,O`
    C
    `O,N,F`
    D
    `F,O,N`

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