A group or family is a vertical column in the periodic table. Groups usually have more significant periodic trends than periods and blocks, explained below. Modern quantum mechanical theories of atomic structure explain group trends by proposing that elements within the same group generally have the same electron configurations in their valence

Short videos about every element on the periodic table, plus other cool experiments and chemistry stuff

Periodic table of elements with information on chemical elements like gold, silver, iron, neon, helium, chlorine, copper, cobalt, and more

Chem4s.com! This tutorial introduces the periodic table. Other sections include matter, elements, reactions, and biochemistry.

Interactive periodic table with dynamic layouts showing names, electrons, oxidation, trend visualization, orbitals, isotopes, and compound …

Periodic Table, periodic table trends, periodic table quiz, Chemistry education software, whether in the form of chemistry lab simulations, data acquisition programs or visualization tools, will have a profound impact on teaching chemistry in the coming years.

An up-to-date periodic table with detailed but easy to understand information

Interactive periodic table with element scarcity (SRI), discovery dates, melting and boiling points, group, block and period information.

There is no one single or best structure for the periodic table but by whatever consensus there is, the form used here is very useful and the most common.

years Is the time it took to place Dalton’s set of Atomic weight values in the first periodic table. In today’s world of instant news and communication one might be shocked to know that it took a lot longer in the 1800’s to discuss ideas with colleagues.