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

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

The group number is an identifier used to describe the column of the standard periodic table in which the element appears. Groups 1-2 termed s-block elements.

Online games. Learn about the periodic table, chemistry, the elements and more with these free online quizzes and games.

The halogens are five non-metallic elements found in group 17 of the periodic table. The term “halogen” means “salt-former” and compounds …

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

In chemistry, a group (also known as a family [citation needed]) is a column of elements in the periodic table of the chemical elements.There are 18 numbered groups in the periodic table, and the f-block columns (between groups 3 and 4) are not numbered.

Atomic and physical properties . . . Discusses trends in atomic radius, electronegativity, electron affinity and melting and boiling points of the Group 7 elements.

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.

A group in the Periodic Table is any column of elements with common properties denoted by the electrons in the outermost layer. There are …