2 electrons.
Any orbital is complete when it contains 2 electrons.
there are 2
Be (beryllium) has four electrons total: the first orbital, the 1s orbital, has two, which leaves two electrons in the outer shell.
Two electrons can fit into the first orbital shell of any atom.
In the s-orbital (cloud 1), 2 electrons can live, and that is the maximum. In the p-orbital (cloud 2), 6 electrons can live, and that is the maximum. 2 electrons in three different planes (Plane X, Plane Y, Plane Z).
An atom with the first two electron orbitals completed would have 10 total electrons. The first electron orbital can hold up to 2 electrons (2 in the s subshell), and the second electron orbital can hold up to 8 electrons (2 in the s subshell and 6 in the p subshell).
The S orbital contains a maximum of two electrons
There are two electrons in the first shell of neon. Its complete electronic configuration is 2,8
A single orbital can hold up to two electrons.
Each orbital can hold a maximum of 2 electrons.
There are two electrons at most in an orbital, further, they have spins in opposed directions.
The 4s orbital can hold a maximum of 2 electrons.