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The first(IE(1)) and second (IE(2))Ioniz...

The first(IE_(1)) and second (IE_(2))Ionization energies (KJ/mol) of a few elements designated by roman numerals are given below.Which of these would be an alkali metal?

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a. `II` , b. `IV` , c. `I` , d.` III`
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Knowledge Check

  • The first (IE_(1)) and second (IE_(2)) ionisation energies (k J mol^(-1)) of a new elements designated by roman numerals are shown below: {:(,,IE_(1),IE_(2),),(I,,2370,5250,),(II,,520,7300,),(III,,900,1800,),(IV,,1700,3400,):} Which of the above elements is likely to be : a. A reactive metal b. A reactive non-metal c. a noble gas d. A metal that forms a stable binary halide of the formula AX_(2) ( X= the halogen).

    A
    I,2372,5251
    B
    II,520,7300
    C
    III,900,1760
    D
    IV,1680,3380

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