How to Excel in JEE Main Mock Tests: Best Strategies for Classification of Elements and Periodicity
Classification of Elements and Periodicity in Properties is a foundational chapter in JEE Chemistry, exploring the logic behind the periodic table, periodic trends, and the laws that govern elements. Mastering this chapter is key for cracking conceptual and numerical JEE questions, especially on atomic size, ionization energy, and electronegativity. Take this mock test to reinforce your concepts, improve speed, and increase confidence for the upcoming exam.
Mock Test Instructions for the Classification Of Elements And Periodicity In Properties:
- 20 questions from Classification Of Elements And Periodicity In Properties
- Time limit: 20 minutes
- Single correct answer per question
- Correct answers appear in bold green after submission
How Can JEE Mock Tests Help You Ace Classification Of Elements And Periodicity In Properties?
- Understand and apply periodic trends like atomic radius, electronegativity, and ionization potential.
- Analyze your strengths and weaknesses on concepts such as electronic configuration and periodicity.
- Develop speed and accuracy by simulating real JEE level multiple-choice questions.
- Identify formula mistakes and conceptual gaps in predicting group and period trends.
- Practice time management for this high-weightage chapter using focused mock tests.
Master Periodic Table Logic and Trends with Vedantu's JEE Chemistry Mock Tests
- Solve questions designed to test Mendeleev’s law, modern periodic law, and s/p/d/f block behavior.
- Enhance retention of crucial trends like melting point, reactivity, and nonmetal/metalloid order.
- Sharpen your ability to compare elements based on periodic properties and block classification.
- Track common errors in determining period, group, and series identity for competitive exams.
- Get expert feedback and improvement tips to maximize your JEE Chemistry score in this topic.
Subject-Wise Excellence: JEE Main Mock Test Links
| S.No. | Subject-Specific JEE Main Online Mock Tests |
|---|---|
| 1 | Online FREE Mock Test for JEE Main Chemistry |
| 2 | Online FREE Mock Test for JEE Main Maths |
| 3 | Online FREE Mock Test for JEE Main Physics |
Important Study Materials Links for JEE Exams
FAQs on JEE Main 2025-26 Mock Test: Classification of Elements and Periodicity in Properties
1. What is meant by the classification of elements?
The classification of elements refers to the systematic arrangement of chemical elements into groups or categories based on their similar properties. This helps in understanding the behavior, properties, and trends of elements in the Periodic Table efficiently.
2. What is periodicity in properties of elements?
Periodicity in properties refers to the recurring trends or patterns observed in the physical and chemical properties of elements as you move across periods and down groups in the Modern Periodic Table. These periodic trends are mainly due to the repetition of similar electronic configurations at regular intervals.
3. What is Mendeleev’s Periodic Law?
Mendeleev’s Periodic Law states that the properties of elements are a periodic function of their atomic masses. This means that similar chemical and physical properties recur after a certain interval when elements are arranged in increasing order of atomic mass.
4. How is the modern periodic table different from Mendeleev’s periodic table?
The modern periodic table is arranged based on increasing atomic number rather than atomic mass as in Mendeleev’s table. This resolves inconsistencies in Mendeleev’s arrangement and correctly positions elements with similar properties in the same groups by aligning them with similar valence shell electronic configurations.
5. Define periodic law.
The Modern Periodic Law states that the physical and chemical properties of elements are a periodic function of their atomic number rather than their atomic mass.
6. What are groups and periods in the periodic table?
In the periodic table, groups are the vertical columns numbered 1 to 18, where elements have the same number of valence electrons and similar properties. Periods are the horizontal rows numbered 1 to 7, in which elements have the same number of electron shells.
7. What are s, p, d, and f blocks in the periodic table?
The periodic table is divided into four blocks based on the type of atomic orbital being filled: s-block (groups 1 and 2), p-block (groups 13 to 18), d-block (transition elements, groups 3 to 12), and f-block (lanthanides and actinides).
8. What is atomic radius? How does it vary in the periodic table?
Atomic radius is the distance from the center of an atom’s nucleus to its outermost shell of electrons. Across a period, atomic radius decreases due to increased nuclear charge. Down a group, atomic radius increases because a new electron shell is added in each step.
9. What is ionization enthalpy? How does it change across a period and down a group?
Ionization enthalpy is the energy required to remove the outermost electron from an isolated gaseous atom. It increases across a period (due to increased nuclear charge) and decreases down a group (as outer electrons are farther from the nucleus and more shielded).
10. How does electronegativity vary in the periodic table?
Electronegativity is the tendency of an atom to attract shared electrons in a chemical bond. It increases across a period (left to right) and decreases down a group due to the increase in distance between the nucleus and valence electrons.
11. Why are noble gases placed in group 18?
Noble gases are placed in group 18 because their outermost shells are completely filled, making them extremely stable and chemically unreactive. Their properties are similar, justifying their grouping in the same column.
12. What are the main uses of the periodic table?
The periodic table is used to predict the properties, reactivity, and trends of elements; correlate physical and chemical properties; and guide the discovery of new elements as per their probable positions.
