Megha Khandelwal

Having trouble understanding the trends and the irregularities of physical properties like Ionisation Enthalpy, Electron Affinity, Acidic and Basic Character, concept of shielding effect, Scandide and Lanthanide contraction and many more. This is the course to cover on Periodicity from very basics to advance. This will help the IIT- JEE aspirants, NEET, BITSAT and other competitive exams as well.

IIT JEE 2020 and 2021 Main and Advanced exam preparation. Know about detailed syllabus, best books, exam pattern and dates. Cover previous year question papers and book solutions from great educators.

IIT JEE

JEE Main and Advanced Preparation

English

Periodicity for IIT JEE

Periodic Table

Inorganic Chemistry

Chemistry

IITJEE, NEET UG and Foundation

Ace the toughest competitive and government exams in India 

Test Preparation

Periodicity : Course Overview

This lesson will discuss a bit about the historical classification of Elements and some important facts.

Classification of Elements and some important facts:

Understand the Trick for determining the Electronic Configuration of any given Element.

Trick for Electronic Configuration (part-1)

In this lesson I have discussed how the electrons get filled in the orbitals as per the Aufbau principle and then how the energies of the orbitals gets changed. I have focused on the area where most of the students get confused. Hope you find this helpful. And to understand completely do watch the continued part.

Trick for Electronic Configuration (part-2)

This lesson will help you to learn the elements with their atomic number and the elements which are important from the exam point of view. This lesson will also discuss the four quantum numbers: principle quantum no., Azimuthal quantum no., Magnetic quantum no. And spin quantum no.

Classification of Elements (part-1)

This lesson will discuss about the all four quantum numbers and how to predict the period, group and block from the given atomic number.

Classification of Elements (part-2)

This lesson will discuss about the Atomic size which can be defined in terms of radius ie the distance between the nucleus and the last shell electron. As the poision of electron is not fixed, it can be learned in the form of:
1. Covant radii
2. Metallic radii
3. Vanderwaal radii
4. Ionic radii

Atomic size (part-1)

This lesson is the continued part and  will discuss the general trend in Atomic size and the factors on which atomic size depends. 
Why the atomic size decreases across-the period and increases on moving from top to bottom ?

Atomic size (part-2)

This lesson will discuss the shielding effect or the screening effect caused by the Inner shells and the factors on which it depends.

Shielding effect

This lesson will discuss the method to calculate the shielding constant by Slater's rule with example.

Calculation of shielding constant by 'Slaters rule'

Practice questions on the Slater's rule to find the effective nuclear charge experienced by an electron.

Calculation of shielding constant by Slater's rule (part-2)

This lesson will discuss the irregularities in atomic size. Why the size of Gallium is smaller than that of Aluminum?

Gallium has smaller size than Aluminum. Why?

This lesson will discuss the irregularities in Atomic size of period- 2 elements. 
1. Why the the atomic size of Ne is comparatively larger ? 
2. Why the atomic size of O>F>N ?

Atomic size of O>F>N. Why?

This lesson will discuss the Scandide contraction or the irregularity in atomic size of first transition series ie. 3d series.

Irregularities in atomic size of first transition series.

This lesson will discuss the trend in atomic size of Lanthanoide series and the irregularities between them.

Irregularities in atomic size of Lanthanoide series

This lesson will discuss the irregularities in atomic size due to Lanthanoide contraction.

Irregularities in atomic size due to Lanthanoide contraction

This lesson will discuss the size of isoelectronic species, the size of isotopes and the isotopic effect.

Size of isoelectronic species & Size of isotopes :

This lesson will discuss Ionisation Energy and the factors affecting Ionisation Energy.

Ionisation Energy (part-1)

This lesson will discuss the variation in Ionisation Energy in 2nd period ie. (Li , Be, B, C, N, O, F, Ne)

Ionisation Energy (part-2)

This lesson will discuss the variation in Ionisation Energy in Group-1, Group- 13 & Group-14 as these two are the most disturbing groups and shows maximum abnormalities.

Ionisation Energy (part-3)

This lesson will discuss:
1. The successive Ionisation Energy (IE-1, IE-2, IE-3... So on )
2. The consequences of IE on metallic character,  reactivity and reducing power of Elements. 
3. Calculation of Ionisation Energy in 1e- system. 

Rest of the lessons you will find in Periodicity (Course-2) 

Stay tuned and give ratings to this course.

Ionisation Energy (part-4)

DPP-1: Periodicity

This course will discuss occurrence of elements in nature. Steps involved in the extraction of metals, concentration, reduction by chemical and electrolytic methods and refining with reference to extraction of Al, Cu, Zn & Fe and Ellingham Diagrams.

(Hindi) Metallurgy for JEE/ NEET

Chemistry Educator || Famous for Inorganic Tricks || Referral code: anirudhw28 

Anirudh Walia

Through this course we will understand how modern periodic table formed. Contribution by various scientist. Classification of blocks i.e. S Block,  P Block, D and F Block. Important trends in physical and Chemical properties. This chapter will build your base for Inorganic Chemistry.

(Hindi) Classification of Elements and Periodic Properties (Unit 3): JEE Main & NEET

◇Inorganic Chemistry Expert
◇Mentor of 100 percentilers and many iitians and nitian
◇15+ year experienced 

Piyush Maheshwari

In this course, educator will be teaching about
Thoery and dpp for jee/neet

(Hindi) Periodic Properties - Inorganic Chemistry IIT JEE

Piyush Patel

This course teaches what happens if you heat different salts of Carbonates , Sulphates , Nitrites , sulphites , bicarbonates , Ammonium salts , Kmno4 , K2Cr2O7 , coordination compounds etc. 

This is accompanied with tricks and concepts. I assure you if you watch this course once you can never forget the tricks and the trends which salts follow when subjected to heat.

In JEE Advanced along with salt analysis these concepts are generally asked . And this is most simplest and important part where students can score very high if they prepare this topic well.

Thermal Stability of Salts , Tricks and Concepts (Carbonates, Sulphates , Nitrates, Ammonium Salts)

Software Engineer || Passionate Teacher || IIITian || All queries ll be answered

Kanishk Agrawal

This course would cover elements of Periodic Table and it's properties in depth. Beginning with the development of the table, we would discuss Modern Periodic Table. Then, all the trends based on effective nuclear charge, radius, the size of an atom, ionization enthalpy, electron affinity, electronegativity wouls be discussed in detail. All the variations across period and group are explained in this 8 lesson course. We also discuss few miscellaneous topics and questions for complete understanding at the end.

(Hindi) Master the Periodic Table and its Properties

chemistry educator || M.Sc.-Chemistry , B.ed || 9 years teaching experince || referral code- "VISHWAUP10"|| Youtuber || JEE NEET 

Vishwa Vivek Sharma

In this course we will learn about the salt analysis and radical testing. Very important for exam and practical chemistry.

Lessons

22 lessons • 4h 39m

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Periodicity : Course Overview

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Classification of Elements and some important facts:

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Trick for Electronic Configuration (part-1)

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Trick for Electronic Configuration (part-2)

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Classification of Elements (part-1)

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Classification of Elements (part-2)

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Atomic size (part-1)

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Atomic size (part-2)

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Shielding effect

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Calculation of shielding constant by 'Slaters rule'

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