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The atomic numbers of two elements A and...

The atomic numbers of two elements A and B are 11 and 12 respectively. Which element exhibits highest metallic property ? Why ? Write the molecular formula of the compounds formed when these elements combine with the element 'Z' having atomic number 8.

Text Solution

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A
Because as the effective nuclear charge acting on the valence shell electrons increases across a period, the tendency to lose electrons will decrease.
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Knowledge Check

  • The atomic numbers of four elements A,B,C and D are 6,10,12 and 17 respectively. Which two elements combine to form a covalent compound ?

    A
    A and D
    B
    A and C
    C
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  • An element with atomic number 21 is a

    A
    transition element
    B
    alkali metal
    C
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    transition element
    B
    alkali metal
    C
    halogen
    D
    representative element

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