Interactive Periodic Table of Elements - Free Chemistry Reference

A As of 2024, there are 118 confirmed elements in the periodic table. Elements 1 (Hydrogen) through 118 (Oganesson) have been discovered and officially named by IUPAC.

A Elements are arranged by increasing atomic number (number of protons). Rows (periods) represent electron shells, and columns (groups) contain elements with similar chemical properties due to having the same number of valence electrons.

A Lanthanides (elements 57-71) and actinides (elements 89-103) are placed separately below the main table to keep it compact. They belong to periods 6 and 7 respectively, filling the f-orbital electron shells.

A Uranium (U, atomic number 92) is the heaviest element that occurs naturally in significant quantities. Elements beyond uranium are primarily synthetic, created in nuclear reactors or particle accelerators.

A To quickly locate all noble gases, navigate to the 'Groups' filter option on the interactive periodic table. Select 'Group 18' (or 'Noble Gases') from the available categories. The table will then highlight or display only these elements, allowing you to easily view their properties, symbols, and atomic numbers for study or reference purposes.

A Yes, you can easily filter elements by their state of matter at room temperature. Access the 'Filters' or 'Categories' menu on our interactive periodic table. You'll find options to select specific physical states like 'Solid,' 'Liquid,' or 'Gas' at standard temperature and pressure (STP). Applying this filter will highlight or display only the elements that match your selection, making it simple to study or compare elements based on their common physical properties.

A To view the electron configuration for any element, simply click on its tile in the interactive periodic table. A detailed properties panel will open, displaying information such as atomic number, atomic mass, and its complete electron configuration (e.g., [He] 2s² 2p⁶). This feature is ideal for students studying quantum numbers or valence electrons.

A To view only synthetic elements, navigate to the 'Categories' or 'Filters' section of our interactive periodic table. Look for an option like 'Synthetic' or 'Man-Made Elements'. Selecting this filter will highlight or display only those elements created in laboratories, such as Technetium (Tc) or Plutonium (Pu), allowing you to easily explore their details without distraction.

A Yes, you can easily obtain a printable version. Look for a 'Print' or 'Download PDF' icon, usually located in the top navigation or footer. This feature allows you to generate a high-quality PDF or image file of the current periodic table view, perfect for offline reference, classroom use, or personal study without an internet connection.