PrepWiser › Learn › Chemistry › Periodic Table & PeriodicityPeriodic Table & Periodicity — JEE Main PYQs & Practice Questions Periodic Table & Periodicity is a Chemistry chapter in the JEE Main syllabus. This page brings together 147 previous-year and practice questions on Periodic Table & Periodicity, organised into 6 topics: Modern Periodic Law, Atomic and Ionic Radii, Ionisation Enthalpy, Electron Gain Enthalpy, Electronegativity and Anomalous Behaviour and Diagonal Relationship. Most questions come with a step-by-step solution you can work through free in PrepWiser.
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Modern Periodic Law Atomic and Ionic Radii The incorrect decreasing order of atomic radii is The type of oxide formed by the element among Li, Na, Be, Mg, B and Al that has the… Anions are always smaller than their parent atoms. Given below are two statements : one is labelled as Assertion (A) and the other is… The ionic radii of K⁺, Na⁺, Al³⁺ and Mg²⁺ are in the order: The correct order of ionic radii for the ions, P³⁻, S²⁻, Ca²⁺, K⁺, Cl⁻ is : The correct order of increasing ionic radii is The atomic radius of Ag is closed to : The ionic radii of F⁻ and O²⁻ respectively are 1.33Aᵒ and 1.4Aᵒ, while the covalent… Which of the following shows correct order of atomic size? Match List-I with List-II. List - I | List - II; (A) | Al³⁺<Mg²⁺<Na⁺<F⁻ | (I) |… Given two statements below : Statement I : In Cl₂ molecule the covalent radius is double… Consider the following elements. Group, |, A′ B′, → Period; ↓, C′ D′ Which of the… The ionic radius of Na⁺ ions is 1.02 Aᵒ. The ionic radii (in Aᵒ) of Mg²⁺ and Al³⁺… The ionic radius of Fe²⁺ is larger than Fe³⁺ because: Given below are two statements : Statement (I) : The metallic radius of Al is less than… The set of elements that differ in mutual relationship from those of the other sets is : The correct orders among the following are Atomic radius : B<Al<Ga<In<Tl… The correct order of the ionic radii of O 2– , N 3– , F – , Mg²⁺, Na⁺ and Al³⁺ is : Given below are two statements : one is labelled as Assertion (A) and the other is… Ionisation Enthalpy First and second ionization enthalpies of lithium are 520 kJ mol⁻¹ and 7297 kJ mol⁻¹… The ionization energy required to remove one electron from Na⁺ (g) is: First ionisation enthalpy values of first four group 15 elements are given below. Choose… The first ionization enthalpy of Na, Mg and Si, respectively, are : 496, 737 and 786 kJ… The incorrect statement is Which of the following alkali metals has the lowest ionization energy? Given below are two statements. One is labelled as Assertion A and the other is labelled… Match List - I with List - II. List I Electronic configuration | List II Δ ᵢH in kJ… Which property increases across a period from left to right? The third ionization enthalpy is minimum for : Which of the following statements are correct? A. The process of adding an electron to a… For elements B, C, N, Li, Be, O and F, the correct order of first ionization enthalpy is Given below are two statements: Statement I: The correct order of electronegativity of… The incorrect relationship in the following pairs in relation to ionisation enthalpies… Given below are two statements : Statement (I) : The first ionization energy of Pb is… Given below are two statements : Statement I : The correct order of first ionization… The atomic number of the element from the following with lowest 1ˢᵗ ionisation enthalpy… Given below are two statements : one is labelled as Assertion (A) and the other is… The first ionization energy of magnesium is smaller as compared to that of elements X… The correct order of metallic character is : Electron Gain Enthalpy The correct order of electron gain enthalpy is : In which of the following pairs, electron gain enthalpies of constituent elements are… Match List I with List II LIST I (Elements) | LIST II (Properties in their respective… Within each pair of elements F & Cl, S & Se, and Li & Na, respectively, the elements… Given below are two statements: Statement I : Fluorine has most negative electron gain… Given below are two statements : Statement (I) : The radii of isoelectronic species… The correct order of electron gain enthalpies of Cl, F, Te and Po is The electron gain enthalpy (in KJ/mol) of fluorine, chlorine, bromine and iodine… Noble gases have high positive electron affinity values. For electron gain enthalpies of the elements denoted as Δ_(eg) H, the incorrect option… Which element has the highest electron affinity among the following? The difference between electron gain enthalpies will be maximum between : The correct order of electron gain enthalpy (- ve value) is : The absolute value of the electron gain enthalpy of halogens satisfies : If EA of Cl is -349 kJ/mol, the energy released on adding one electron to 1 mol of Cl… The electron affinity value are negative for A. Be → Be⁻ B. N → N⁻ C. O → O²⁻ D. Na →… Which of the following statements are not correct? A. The electron gain enthalpy of F is… Electron affinity is a measure of: The correct sequence of electron gain enthalpy of the elements listed below is A. Ar B… Electronegativity Anomalous Behaviour and Diagonal Relationship More Chemistry chapters Frequently asked questions How many Periodic Table & Periodicity questions are there for JEE Main? PrepWiser has 147 Periodic Table & Periodicity questions for JEE Main, grouped into 6 topics such as Modern Periodic Law, Atomic and Ionic Radii and Ionisation Enthalpy.
Are these Periodic Table & Periodicity questions from previous-year JEE Main papers? Yes — most are genuine previous-year questions from past JEE Main papers, and the rest are practice questions written to match the JEE Main pattern and difficulty.
Where can I see the answers and solutions to these Periodic Table & Periodicity questions? Open any Periodic Table & Periodicity question in PrepWiser (it is free) to attempt it; most come with a step-by-step solution.