Helium is the second-most common element in the cosmos, but it's far rarer on planet Earth. As part of our celebration of the periodic table's 150th birthday, reporter Geoff Brumfiel shares a ...

If you were to take every element in the periodic table and order them by how abundant they are in the Universe, you'd find something a little bit surprising. The most common element is hydrogen ...

We're pretty fortunate that our Sun wasn't among the very first stars in the Universe. Shortly after the Big Bang, the Universe was made exclusively of hydrogen and helium: 99.999999% of the ...

By the periodic table’s logic, all d-block elements should have filled s orbitals. But copper defies that logic. ... Most tables place helium atop the noble gases.

Students will be able to interpret the information given in the periodic table to describe the arrangement of electrons on the energy levels around an atom. ... Helium Explain that helium has 2 ...

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." ...

Since Mendeleev's time, scientists have discovered new elements, expanding the periodic table. The most recent additions include nihonium, moscovium, tennessine, and oganesson, which were officially ...

Walker Smith, a researcher at Indiana University, presents his musical periodic table as a performance of his elemental compositions. W. Walker Smith and Alain Barker Earth’s natural soundtrack ...