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Lithium, beryllium, boron, chlorine...

Lithium, beryllium, boron, chlorine

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Chlorine
Chlorine is placed in period 3 while other are placed in period 2 of the modern periodic table.
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Lithium is

Lithium and beryllium, the first members of alkali metals group and alkaline earth metals group, show anomalous behaviour due to the small sizes of their atoms and ions, high ionisation enthalpies, high polarizing power and absence of vacant d-orbitals in their valence shell. Lithium resembles magnesium while beryllium resembles aluminium due to diagonal relationships. Lithium is the only alkali metal which forms nitride directly. Why?

Knowledge Check

  • Beryllium is

    A
    an alkali metal
    B
    an alkaline earth metal
    C
    a transition metal
    D
    None of these

  • Lithium forms

    A
    LiO
    B
    `LiO_(2)`
    C
    `Li_(2)O`
    D
    `Li_(2)O_(2)`

  • The three stes of elements are given below (i) Boron, aluminium, gallium, beryllium (ii) Boron, aluminium, gallium, germanium (iii) Boron, aluminium, thallium, rubidium Which of the above contains groups of elements whose properties are similar in many respect to group 13 elements?

    A
    (ii)
    B
    (iii)
    C
    (i)
    D
    (i) and (iii)

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    Lithium and beryllium, the first members of alkali metals group and alkaline earth metals group, show anomalous behaviour due to the small sizes of their atoms and ions, high ionisation enthalpies, high polarizing power and absence of vacant d-orbitals in their valence shell. Lithium resembles magnesium while beryllium resembles aluminium due to diagonal relationships. How will you distinguish between BaSO_4 and BeSO_4 ?

    Lithium and beryllium, the first members of alkali metals group and alkaline earth metals group, show anomalous behaviour due to the small sizes of their atoms and ions, high ionisation enthalpies, high polarizing power and absence of vacant d-orbitals in their valence shell. Lithium resembles magnesium while beryllium resembles aluminium due to diagonal relationships. Complete the reactions: BaO + NaOH to

    Lithium and beryllium, the first members of alkali metals group and alkaline earth metals group, show anomalous behaviour due to the small sizes of their atoms and ions, high ionisation enthalpies, high polarizing power and absence of vacant d-orbitals in their valence shell. Lithium resembles magnesium while beryllium resembles aluminium due to diagonal relationships. Why is LiCl soluble in organic solvents?

    Discuss the structure of beryllium chloride in different states.

    In context with beryllium , which one of the following statements is incorrect ?

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