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

Hindi

(Hindi) Periodicity for IITJEE

Periodic Table

Inorganic Chemistry

Chemistry

IITJEE, NEET UG and Foundation

Ace the toughest competitive and government exams in India 

Test Preparation

Periodicity: Course Overview (in Hindi)

This lesson will discuss about the historical classification of Elements.

Classification of Elements: Historical Classification (in Hindi)

This lesson will discuss some important facts about the elements that everyone must know.

Some Important Facts (in Hindi)

Here, I will discuss with you about:
1. Principal quantum number 
2. Azimuthal Quantum Number
3. Magnetic Quantum Number
4. Spin Quantum Number

Knowledge of Quantum Numbers (in Hindi)

Here, I will discuss the easiest way to learn the periodic table.

Trick to learn Periodic Table (in Hindi)

Here , will discuss how we can determine the period, group, or block of an unknown element.

Identification of Group, Period & Block (in Hindi)

Here, I will discuss with you the trick to write the electronic configuration of any element or any given atomic number. 
Here I will will share some important tips as well.

Trick for Electronic Configuration (in Hindi)

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 or Screening Effect

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

Calculation of Shielding Constant by ‘Slater’s Rule’ (part-1)

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 Aluminium. 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.
1. Why the Eu & Yb has an irregular increase in size ?

Irregularities in atomic size of Lanthanides 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 Successive Ionisation Energies.

Ionisation Energy

This lesson will discuss the general variation in Ionisation Energy and the factors affecting Ionisation Energy.

Factors affecting Ionisation Energy

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

Irregularities in Ionisation energy (part-1)

This lesson will discuss: 
1. the variation in Ionisation Energy in Group- 13 & Group-14 as these two are the most disturbing groups and shows maximum abnormalities.
2. Abnormalities in I.E for Group-1 Elements. 
3. The successive Ionisation Energy (IE-1, IE-2, IE-3... So on )
4. The consequences of IE on metallic character,  reactivity and reducing power of Elements.

Irregularities in Ionisation energy (part-2)

This lesson will discuss the Calculation of Ionisation Energy in 1e- system. 


Stay tuned and give ratings to this course.

Ionisation Energy in 1 electron system

This lesson will discuss about 
1.The general definition of Electron Affinity and the relation between the two terms Electron Affinity and Electron gain Enthalpy. 
2. Successive Electron Affinities

Electron Affinity

This lesson will discuss: 
1.The factors affecting Electron Affinity
2. Variation in Electron Affinity

Factors affecting Electron Affinity

This lesson will discuss: 
1. Abnormalities in Electron Affinity across the period 2 and 3.
2. Abnormalities in Electron Affinity across the group 17, 16, & 15

Irregularities in Electron Affinity (part-1)

This lesson will discuss:
1. The Variation in Electron Affinity 
2. Abnormalities in Electron Affinity across Group-15 and Noble gases. 
3. Au has the highest Electron Affinity among all the metals. Why?

Irregularities in Electron Affinity (part-2)

This lesson will discuss about Electronegativity and the determination of Electronegativity values by Pauling's scale, Mulliken's scale and Allred Rochow scale.

Electronegativity

This lesson will discuss: 
1. The factors that affects the Electronegativity.
2. Variation of electronegativity across the period and group.

Factors that affects Electronegativity

This lesson will discuss: 
Applications of Electronegativity in determining the Nature of Bond and Nomenclature and Acidic Strength in Hydracids. 

This is continued to the next lesson.

Applications of Electronegativity (part-1)

This lesson will discuss the application of Electronegativity in  determining the Acidic character of Hydracids and Oxyacids, Basic character and the Bond length.

Applications of Electronegativity (part-2)

This lesson will discuss the strength of Acidic and Basic character.

Acidic Basic Character (part-1)

This is the continued part of previous lesson where we will learn about the strength of Acidic and Basic Character in Oxides of metal and Non-metals .
And also find the trick to understand the anhydrides of various acids.

Acidic Basic Character (part-2)

This lesson will discuss about diagonal relationship.

Diagonal Relationship

DPP-1: Periodicity (in Hindi)

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

Paaras Thakur

This course covers the basic concepts and a number of selected problems for board + competitive exams like JEE, NEET, AIIMS

(Hindi) Periodic Properties for JEE/NEET/AIIMS

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

Akash Tripathi

Whole periodic table is discussed in this course like it's classification property valency block period trends family.

(Hindi) Periodic Table (Full Introduction) : IIT JEE

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

35 lessons • 7h 36m