The periodic table is a letdown in another sense, too: Given all its columns and rows, it looks like it should contain dozens of different types of elements, but there are really only a few.

The periodic table is getting an update. The International Union of Pure and Applied Chemistry announced that four new chemical elements have been assigned atomic numbers 113, 115, 117 and 118.

You know the periodic table that hung on the wall of every science class you took at school? As of today, it’s wrong. Or more precisely, it's inaccurate.

There are currently 118 known elements listed on the periodic table; from hydrogen, which has a single proton in its nucleus, ...

Helium is the second element in the periodic table, and has the symbol He. Helium is also a gas, but is very different from hydrogen because it doesn’t take part in any chemical reactions.

Elemental music: Interactive periodic table turns He, Fe, Ca into Do, Re, Mi. Hydrogen has a scale pattern; zinc "sounds like an angelic vocalist singing with vibrato." ...

Have students look at the Periodic table of the elements 1–20 they used in lesson 2 to answer the following question: ... Tell students that the rows across on the periodic table are called periods.

In due course, a number of trans-uranium elements were detected by means of bombardment with particles, which resulted in creating atoms of the next higher element on the periodic table. Today ...

He started his talk by discussing the first modern periodic table produced in 1869 by Dmitri Ivanich Mendeleev (1834-1907), a Russian chemist who developed the periodic classification of the elements ...

“The result is that the simpler elements, such as hydrogen and helium, sound vaguely like musical chords, but the rest have a more complex collection of sounds,” Smith said in the release.