The Modern Periodic Table of Elements
In the science category, the periodic table is the most significant tool for organizing chemical knowledge. This chemistry solver provides an interactive visualization of the 118 known elements, from Hydrogen (H) to Oganesson (Og). Beyond just the atomic number, our table deep-dives into electron configurations, electronegativity, and state of matter at standard temperature.
The periodic table is not just a static list; it is a map of chemical reactivity. By understanding the arrangement of elements in groups (columns) and periods (rows), scientists can predict how atoms will bond and interact in everything from semiconductor manufacturing to drug discovery.
Understanding Periodic Trends (Periodicity)
This science solver highlights key trends that dictate chemical behavior:
- Electronegativity: The ability of an atom to attract electrons. Trends generally increase as you move top-right.
- Atomic Radius: The size of the atom, which typically increases as you move down a group and decreases across a period.
- Ionization Energy: The energy required to remove an electron. High ionization energy characterizes non-metals and noble gases.
Chemical Group Classifications
Chemistry FAQ
Who invented the periodic table?
Dmitri Mendeleev published the first widely recognized periodic table in 1869, leaving gaps for elements that had not yet been discovered.
What are isotopes?
Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons.