periodic table

Enter the “hydrogen rainbow,” a color-coded system for describing the many ways to convert the lightest element on the periodic table into energy.

Rare earths, also known as rare-earth metals, are made up of the 17 metallic elements on the periodic table essential to many high-tech devices, including smartphones, televisions, computers and electric vehicles.

By the time the act was passed, scientists knew coal ash contained trace metals such as arsenic, chromium, lead and other chemicals recognizable from the periodic table, all of which could slowly infiltrate groundwater.

Sams then rattled off other coal-ash contaminants that the tests had found, words most residents had only ever heard while studying the periodic table during chemistry class.

In this state, August Kekule, saw the structure of benzene, Mary Shelley found the idea for her iconic novel Frankenstein, and Dmitri Mendeleev discovered the periodic table of the chemical elements.

And when you review the periodic table, take special note of Tungsten, or Wolfram.

All of these had their atomic weights found, and fell into that new column in the periodic table.

Carbon stands at the head of a family of elements in the fourth group in the periodic table.

As would be expected from its place in the periodic table, silicon resembles carbon in many respects.

Following iron, nickel, and cobalt in the eighth column of the periodic table are two groups of three elements each.

The elements iron, cobalt, and nickel form a group in the eighth column of the periodic table.