NEET Chemistry Periodic Table Revision Notes

Here is the NEET Chemistry Periodic Table Revision Notes for your studies. Use these Full Course Periodic Table revision notes, created by professional educators for the 2026-27 academic term. They make difficult ideas very easy to understand and focus on core definitions, helping Full Course students prepare quickly before exams.

Quick Notes: Full Course Periodic Table - Periodic Table

Check out these Full Course Periodic Table Periodic Table notes to study important concepts in very little time. These concise summaries target difficult questions and scoring chapters, helping you perform better in school exams and final tests.

Download Revision Notes: Periodic Table (Full Course Periodic Table)

Modern Periodic Law:
 
• Properties of elements are the periodic function to their atomic numbers.
• The periodicity in properties is due to repetition of similar outer shell electronic configuration at a certain regular intervals.
• In modern periodic table is based on modern periodic law in which elements are arranged in increasing order of their atomic numbers.
• In the modern periodic table, the elements are arranged in rows and columns. These rows and columns are known as periods and groups respectively.
• The table consists of 7 periods and 18 groups
• Period indicates the value of ‘n’ (principal quantum number) for the outermost or valence shell.
• Same number of electrons is present in the outer orbitals (that is, similar valence shell electronic configuration
 
IUPAC Nomenclature for Elements with Atomic Number 100
 
NEET Chemistry Periodic Table Revision Notes
 
Classification of Elements:
 
NEET Chemistry Periodic Table Revision Notes-1
 
Periodicity in Atomic Properties:
 
1. Atomic Radius:
 
• Within a given period atomic radius decreases from left to right. This is due to the effect of increase in nuclear charge while the electrons are being added to the same shell.
• Within a given group atomic radius increases down the group. This is due to the increase in number of shells.
 
NEET Chemistry Periodic Table Revision Notes-2
 
• In the first transition series the atomic size slightly decreases from Sc to Mn because effect of effective nuclear charge is stronger than the shielding effect. The atomic size from Fe to Ni remains almost the same because both the effects balance each other.
 
• The atomic size from Cu to Zn slightly increases because shielding effect is more than effective nuclear charge due to d10 structure of Cu and Zn.
 
• Inner transition elements – As we move along the lanthanide series, there is a decrease in atomic as well as ionic radius. The decrease in size is regular in ions but not so regular in atoms. This is called lanthanide contraction.
 NEET-Chemistry-Periodic-Table-Revision-Notes 1
Factors which influence I.E.
 
•  Atomic size: the larger the size of the atom, the smaller the I.E. i.e., I.E. μ
 
•  Effective nuclear charge: The greater the effective charge on the nucleus of an atom, the more difficult it would be to remove an electron from the atom because electrostatic force of attraction between the nucleus and the outermost electron increases. So greater energy will be required to remove the electron.
 
•  Penetration effect of orbitals: The order of energy required to remove electron from s,p,d-and¦- orbitals of a shell is s>p>d>¦.
 
•  Shielding or screening effect: Screening effect results in decrease of force of attraction between the nucleus and the outermost electron and lesser energy is required to separate the electron. Thus the value of I.P. decreases.
 
•  Stability of half-filled and fully-filled orbitals: According to Hund's rule the stability of half filled or completely filled degenerate orbitals is comparatively high. So comparatively more energy is required to separate the electron from such atoms.
NEET-Chemistry-Periodic-Table-Revision-Notes 2
 
3) Electron Affinity:
 
Electron affinity increases along the period while decreases down the group.
Factors affecting the magnitude of electron affinity
 
• Atomic size – In general electron affinity value decreases with the increasing atomic radius because electrostatic force of attraction decreases between the electron being added and the atomic nucleus due to increase of distance between them.
 
• Effective nuclear charge – Electron affinity value of the element increase as the effective nuclear charge on the atomic nucleus increases because electrostatic force of attraction between the electron being added and the nucleus increases. As the electrostatic force of attraction increases,amount of energy released is more.
 
• Screening or Shielding effect – Electron affinity value of the elements decreases with the increasing shielding or screening effect. The shielding effect between the outer electrons and the nucleus increases as the number of electrons increases in the inner shells.
Stability of half filled and completely filled orbitals – The stability of half filled and completely filled degenerate orbitals of a sub shell is comparatively more, so it is difficult to add electron in such orbitals and lesser energy is released on addition of electron hence the electron affinity value will decrease.
NEET-Chemistry-Periodic-Table-Revision-Notes 3
 
Please click the link below to download pdf file of NEET Chemistry Periodic Table Revision Notes

Free study material for Chemistry

Study Material & Revision Notes for Full Course Periodic Table Periodic Table

Quick Revision Notes: Periodic Table (NEET)

Students can use these Revision Notes for Periodic Table to quickly understand all the main concepts. This study material has been prepared as per the latest NEET syllabus for Full Course. Our teachers always suggest that Full Course students read these notes regularly as they are focused on the most important topics that usually appear in school tests and final exams.

Core Chapter Summary & Practice Sets for Periodic Table

Our professional educators designed these notes using the official NCERT book for Full Course Periodic Table. Pairing your summary review with our recommended NCERT solutions for Full Course clarifies complex ideas and ensures a rock-solid comprehension of Periodic Table.

Master Full Course Periodic Table with Extra Practice Sets

To excel in your evaluations, learners should also tackle the MCQ questions and practice worksheets available on this page. These additional solved exercises verify your mastery over Periodic Table concepts. Every learning aid online is free and synchronized with current Periodic Table exam trends. Reviewing these revision notes daily builds confidence and drives better scores.

FAQs

Where can I download the latest PDF for NEET Chemistry Periodic Table Revision Notes?

You can download the teacher prepared revision notes for NEET Chemistry Periodic Table Revision Notes from StudiesToday.com. These notes are designed as per 2026-27 academic session to help Full Course students get the best study material for Periodic Table.

Are these Periodic Table notes for Full Course based on the 2026 board exam pattern?

Yes, our NEET Chemistry Periodic Table Revision Notes include 50% competency-based questions with focus on core logic, keyword definitions, and the practical application of Periodic Table principles which is important for getting more marks in 2026 NEET exams.

Do these Full Course notes cover all topic-wise concepts for Periodic Table?

Yes, our NEET Chemistry Periodic Table Revision Notes provide a detailed, topic wise breakdown of the chapter. Fundamental definitions, complex numerical formulas and all topics of NEET syllabus in Full Course is covered.

How can I use NEET Chemistry Periodic Table Revision Notes for quick last-minute revision?

These notes for Periodic Table are organized into bullet points and easy-to-read charts. By using NEET Chemistry Periodic Table Revision Notes, Full Course students fast revise formulas, key definitions before the exams.

Is there any registration required to download Full Course Periodic Table notes?

No, all study resources on StudiesToday, including NEET Chemistry Periodic Table Revision Notes, are available for immediate free download. Full Course Periodic Table study material is available in PDF and can be downloaded on mobile.