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

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 3. Classification of elements and periodicity in properties4 Marks
MCQ
Which of the following is not representative element ?
  • A
    Tellurium
  • ✓
    Tantalum
  • C
    Thallium
  • D
    Astatine
✓

Answer

Correct option: B.
Tantalum
b
From left to right in periodic table :-

Metallic character decreases

Non-metallic character increases

$\Rightarrow$ It is due to increase in ionization enthalpy and increase in electron gain enthalpy.

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