
Isotopes are atoms of the same element with the same atomic number but different atomic masses due to varying neutrons, as carbon-12, carbon-13, carbon-14 and hydrogen isotopes illustrate.
Mendeleev organized the known elements by increasing atomic mass into columns called groups, creating the periodic table whose columns contain elements with similar chemical and physical properties.
Mendeleev organized elements into groups by properties and arranged them by atomic mass while predicting undiscovered elements via gaps, such as eka-boron and eka-silicon.
Explore how atomic radius shapes ionization energy and electron affinity, driving increased nonmetallic character across a period and stronger metallic character down a group.
Compare metals and nonmetals by electropositive and electronegative properties. Metals form basic oxides and release hydrogen gas with water and acids, while nonmetals form acidic oxides and are less reactive.
This Chemistry Course on Periodic Classification of Elements is an intermediary class course designed from the perspective of education & learning. This course covers the general syllabus related to the topic Periodic Classification of Elements.
This course provides general knowledge & conceptual understanding in basic fundamentals & concepts of Periodic Table & it's need to understand about different elements.
It starts from the early (19th century) studies made by Johann Dobereiner & Newland’s to classify elements based on atomic mass.
Then, it provides details about 20th century discoveries & studies made by Mendeleev & Mosley to classify elements based on atomic mass.
It's detailed focus on the design and classification of elements in Modern Periodic Table provides good conceptual learning & understanding of elements in 21st century.
It provides detailed study for trends & behavior of elements based on Atomic Number, Atomic Radius & Valency in Periods & Groups of Modern Periodic Table.
Further it gives good learning for Physical & Chemical Properties of Metals & Non-metals.
Different terminologies like Atomic Number, Atomic Mass, Isotopes, Ionization Energy, Electron Affinity & Valency are explained in detail.
It also includes Quiz and Practical Lab Projects & Experiments on different sections of this course.
This course can be enrolled for:
Beginner & Intermediate Learning
Board exam preparation
Competitive exam (like NEET, IIT) preparation
National & International Olympiads
Preparing international levels AQA, OCR, GCSC (I & II)
Any candidate interested in learning (no prerequisite knowledge required)