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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
Which of following statement is incorrect :
  • A
    Lithium and magnesium exhibit diagonal relationship
  • B
    Elements of groups $1, 2, 13, 14, 15, 16$ and $17$ are known as representative elements
  • C
    In $5^{th}$ period, the subshells $5s,\, 4f,\, 4d,\, 5p$ would be filled
  • ✓
    General configuration of f-Block elements is $(n -2)f^{1-14}\, (n -1)d^{0-1} \,ns^2$
✓

Answer

Correct option: D.
General configuration of f-Block elements is $(n -2)f^{1-14}\, (n -1)d^{0-1} \,ns^2$
d

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