PYQSide ExamsMy practice

Classification of Elements and Periodicity in Properties · Question 41

AIPMT 2002MCQEasy📈 Topic in 25% papers+4−1
1

An atom has electronic configuration 1s2 2s2 2p6 3s2 3p6 3d3 4s2, you will place it in which group?

  1. fifth
  2. fifteenth
  3. second
  4. third

Answer

(1) fifth

Solution

The last electron enters the 3d subshell d-block element (Z = 23, vanadium).

For a d-block element: group number = (n − 1)d electrons + ns electrons

Group = 3 + 2 = 5

The element is placed in the fifth group.

Answer: (1)

AIPMT 2002

Keep practising — Classification of Elements and Periodicity in Properties

2

Correct order of 1st ionization potential among following elements Be, B, C, N, O is

  1. B < Be < C < O < N
  2. B < Be < C < N < O
  3. Be < B < C < N < O
  4. Be < B < C < O < N
AIPMT 2001

All Classification of Elements and Periodicity in Properties PYQs →

PDFDownload Classification of Elements and Periodicity in Properties PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
All NEET Chemistry chapters
Physical ChemistrySome Basic Concepts of ChemistryStructure of AtomStates of MatterThermodynamicsEquilibriumRedox ReactionsSolid StateSolutionsElectrochemistryChemical KineticsSurface Chemistry
Inorganic ChemistryClassification of Elements and Periodicity in PropertiesChemical Bonding and Molecular StructureHydrogens-Block Elementsp-Block Elements (Group 13 & 14)Environmental ChemistryGeneral Principles of Isolation of Elementsp-Block Elements (Group 15–18)d- and f-Block ElementsCoordination Compounds
Organic ChemistryOrganic Chemistry – Some Basic Principles and TechniquesIsomerismHydrocarbonsHaloalkanes and HaloarenesAlcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAminesBiomoleculesPolymersChemistry in Everyday LifePrinciples Related to Practical Chemistry