# Periodic Table for Chemists — Chemistry Reference Tool > Comprehensive periodic table reference with advanced chemistry tools for students and professionals. (iPhone/iPad app by Hans Joachim Weidmann.) - Source: https://appshunter.io/ios/app/periodic-table-for-chemists/id6758019544 (this page in markdown: same URL + `.md`) - Developer: [Hans Joachim Weidmann](https://appshunter.io/developer/1826468486) - Category: Education, Utilities - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.4 · 15 MB - Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China), European Spanish and 1 more - Released: 2026-01-28 - Data updated: 2026-08-20 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/periodic-table-for-chemists/id6758019544/reviews.md ## What is Periodic Table for Chemists? The complete periodic table app for chemists, students, and science enthusiasts. Built on a comprehensive chemistry database, this app delivers professional-grade element data in a beautiful, intuitive interface. COMPREHENSIVE ELEMENT DATA • All 118 elements with extensive properties • Atomic mass, density, melting/boiling points • Electron configuration and orbital structure • Ionization energies and atomic radii • Crystal structure and lattice parameters • Oxidation states and chemical reactivity ADVANCED CHEMISTRY TOOLS • 11 electronegativity scales (Pauling, Sanderson, Allen, Mulliken, and more) • Effective nuclear charge (Zeff) calculations using Slater's rules • Electronic structure visualization • Valence electron identification • Chemical reactivity indicators POWERFUL SEARCH & ORGANIZATION • Instant search by element name, symbol, or atomic number • Filter by category (metals, nonmetals, noble gases, etc.) • Browse by period, group, or block • Save favorites for quick access • Add personal notes to elements BEAUTIFUL INTERFACE • Interactive periodic table with smooth zoom and pan • Category-based color coding • Dark mode support • Optimized for iPhone and iPad • Accessibility features built-in PROFESSIONAL DATA SOURCES All data is sourced from authoritative references including NIST, IUPAC, and peer-reviewed scientific literature. The app uses the same comprehensive database that powers the mendeleev Python library, trusted by researchers worldwide. WORKS OFFLINE All element data is bundled with the app. No internet connection required for core functionality: perfect for classrooms, labs, and field work. PERFECT FOR: • Chemistry students studying atomic structure • Research chemists needing quick reference data • Educators teaching periodic trends • Anyone fascinated by the elements Whether you're memorizing electron configurations, comparing electronegativity values, or exploring chemical properties, this app provides the depth and accuracy you need. Download the definitive periodic table reference today. ## Key features - 118 elements with extensive properties - Advanced chemistry calculations (Zeff, electronegativity) - Electronic structure visualization - Powerful search and filtering - Offline access to all data - Interactive periodic table interface - Personal notes and favorites ## Frequently asked questions about Periodic Table for Chemists ### What is the Periodic Table for Chemists app? Periodic Table for Chemists is a comprehensive reference tool providing detailed data on all 118 elements. It includes properties, advanced calculations, and visualizations, making it ideal for students and professionals. ### Does Periodic Table for Chemists work offline? Yes, all element data is bundled with the app, allowing for core functionality without an internet connection. This makes it perfect for use in classrooms, labs, or during fieldwork. ### What kind of element data is available? The app offers extensive data including atomic mass, density, melting/boiling points, electron configuration, ionization energies, atomic radii, and more for all 118 elements. ### What advanced chemistry tools are included? It features 11 electronegativity scales, effective nuclear charge (Zeff) calculations using Slater's rules, electronic structure visualization, valence electron identification, and chemical reactivity indicators. ### How does Periodic Table for Chemists handle updates? The app was last updated on July 12, 2026, with version 1.0.5. Future updates will likely continue to refine data and features based on scientific advancements and user feedback. ### What devices is Periodic Table for Chemists available on? The app is optimized for both iPhone and iPad, ensuring a seamless experience across Apple mobile devices. It has an age rating of 4+. ### Where does the data in Periodic Table for Chemists come from? All data is sourced from authoritative references including NIST, IUPAC, and peer-reviewed scientific literature. This ensures professional-grade accuracy for its users. ### Can I save my favorite elements or add notes? Yes, the app allows you to save favorite elements for quick access and add personal notes to specific elements. This helps in organizing your research and study. ## Version history (last 5 releases) ### 1.0.5 — 2026-07-12 This version of Periodic Table for Chemists includes bug fixes and usability improvements. ### 1.0.4 — 2026-07-10 This version of Periodic Table for Chemists includes bug fixes and usability improvements. ### 1.0.3 — 2026-01-31 This version of Periodic Table for Chemists includes language improvements ### 1.0.2 — 2026-01-29 Language support updates ### 1.0.1 — 2026-01-29 This version of Periodic Table includes language updates ## More apps by Hans Joachim Weidmann - [White Noise Background Sounds](https://appshunter.io/ios/app/white-noise-background-sounds/id6748593340) - [GetJacked: Beginner Gym Plan](https://appshunter.io/ios/app/getjacked-beginner-gym-plan/id6748717874) - [Our Common Bond Au Citizenship](https://appshunter.io/ios/app/our-common-bond-au-citizenship/id6748720026) - [Tally Counter - Countify](https://appshunter.io/ios/app/tally-counter-countify/id6749193003) - [Split Bill - Pay Friends](https://appshunter.io/ios/app/split-bill-pay-friends/id6756707606) All apps by Hans Joachim Weidmann: https://appshunter.io/developer/1826468486 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*