Helium is almost always placed above neon (which is in the p-block) in the periodic table as a noble gas, although it is occasionally placed above beryllium due to their similar electron configuration.
Helium hampir selalu diletakkan di atas neon (yang merupakan anggota blok-p) dalam tabel periodik sebagai gas mulia, meskipun ia kadang-kadang diletakkan di atas berilium karena kesamaan konfigurasi elektronnya.