The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups").

Oct 27, 2025 · There are 118 elements on the periodic table. The elements are arranged in order of increasing atomic number, which is the number of protons in that atom’s nucleus. Hydrogen, the …

Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.

Jul 23, 2025 · Modern Periodic Table is a long-form periodic classification of elements based on the electronic configuration of elements. Modern Periodic Table has vertical columns called 'Groups' and …

Grouping the elements into different classes is called periodic element classification. This approach involves the arrangement of related elements, and the separation of unlike elements.

Identify the elements belonging to the same group or period Get 3 of 4 questions to level up! Find the valency of an element Get 3 of 4 questions to level up! Valency: Write the formula of a compound …

These different types of atoms are referred to as elements. Examples of familiar elements include hydrogen (H), carbon (C), oxygen (O), nitrogen (N), sodium (Na), and chlorine (Cl). The letters in …

The periodic classification of elements is a systematic arrangement of chemical elements based on their atomic number, electron configuration, and recurring chemical properties.

Elements are Classified into: s-, p-, d- and f- blocks. Main Group Elements/ Representative Elements: The elements of the s-and p-block are called major group elements, or representative elements.

Jul 31, 2025 · The Periodic Table classification is a tool used for arranging chemical elements and their properties for easy understanding. The candidates see trends of the elements across the group and …