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3. Classification of elements and periodicity in properties — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
In which of the following groups all the three members are of the alkaline earth metals family
  • A
    $Al,\,Sr,\,Ti$
  • B
    $Li,\,Na,\,K$
  • ✓
    $Mg,\,Ba,\,Ca$
  • D
    $Rb,\,Cs,\,Fr$
✓

Answer

Correct option: C.
$Mg,\,Ba,\,Ca$
c
(c) $Mg,\,Ba,\,Ca$ have $n{s^2}$configuration.

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