How many atoms / electron clouds does helium have ?
Helium has completely filled orbitals and is hence chemically inert.
The electron configuration of helium is 1s2; two electrons on the first (and the single) electron shell.
Technetium has 43 electrons, so it has 43 orbitals.
a noble gas has a full outer shell; in the case of helium the 1s shell is full making it stable and dose not want anymore electrons making it have a low reativity just like the rest of the noble gases
Helium has only 1 shell with two electrons.
Helium has two electrons, and each electron occupies an orbital. Therefore, in a helium atom, there are two orbitals, one for each electron.
one
Beryllium has four orbitals in its electron configuration.
The atomic number of helium is one more than that of hydrogen. In both the elements, the electrons are filled in the 1s orbitals. Hydrogen has one electron, helium has two.
Because helium has completely filled valence orbitals similar to other noble gases.
Boron has two electron orbitals - 1s and 2s. Each orbital can hold a maximum of 2 electrons.
Helium has completely filled orbitals and is hence chemically inert.
atomic orbitals and electron orbitals
Aluminium has three electron shells with 2,8,3 electrons each.
There are 27 electron containing orbitals in an atom of Iodine.
The electron configuration of helium is 1s2; two electrons on the first (and the single) electron shell.
Iodine has 7 electron-containing orbitals, corresponding to its 7 valence electrons in the p subshell. These orbitals can hold a maximum of 2 electrons each.