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JEE Main20253 Apr 2025Evening ShiftChemistryClassification of Elements and Periodicity in PropertiesActual

The correct orders among the following are Atomic radius : B Al Ga In Tl Electronegativity : Al Ga In Tl B Density : Tl In Ga Al B 1st Ionisation Energy : In Al Ga Tl B Choose the correct answer from the options given below :

Options

  1. AB and D Only
  2. BA and C Only
  3. CC and D Only
  4. DA and B Only

Correct answer

A. B and D Only

Step-by-step solution

array |l|l|l|l|l|l| & B & Al & Ga & In & Tl array l Atomic radius ( pm ) array & 88 & 143 & 135 & 167 & 170 Electronegativity & 2 & 1.5 & 1.6 & 1.7 & 1.8 array l Density ( g / cm ^3 ) array & 2.35 & 2.7 & 5.9 & 7.31 & 11.85 array l Ionisation (kJ/mol) array & 801 & 577 & 579 & 558 & 589 array Radius Order T In A Ga B EN Order B T In Ga Al Density Order T In Ga A B IE ₁ Order B T Ga A In

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