Here, a chemist describes group 15 and the crucial role they play in life. The elements that make up each column of the periodic table share a set of common traits. U.S.

The periodic table of the elements isn't as confusing as it looks. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists had a ...

The periodic table on the website of the International Union of Pure and Applied Chemistry avoids making a decision about whether La and Ac or Lu and Lr are group 3 elements.

Atoms in the same column (group) in the periodic table have the same number of valence electrons. Summary. Students will again focus on the first 20 elements. Students will first look at a diagram and ...

If you are intimidated by the periodic table, then this introduction through the first column of elements will give you a feel for how and why the elements are arranged in this order.

A table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.

All the latest science news on periodic table of elements from Phys.org. Find the latest news, advancements, and breakthroughs.

Scientists have developed the first electrically pumped continuous-wave semiconductor laser composed exclusively of elements from the fourth group of the periodic table -- the 'silicon group'.