The 2,8,8,18 is how many elements are in each row of the Periodic Table. Each S orbital can hold 2, P orbitals can hold 3 6 (2 each in 3 total), D orbitals can hold 10 (2 each in 5 total), and F orbitals can hold 14 (2 each in 7 total).
The first shell is just 1S, which can hold 2.
The second shell is 2S, 2P which can hold 8 total (2+6)
The third shell is 3S, 3P, 3D which can hold 18 total (2+6+10)
The fourth shell is 4S, 4P, 4D, 4F which can hold 32 total (2+6+10+14)
Hydrogen's electron configuration is 1s1. It has only one electron. It is located in the first energy level.
The first electron energy level can only hold 2 electrons. Hydrogen only has 1 first energy level electron as it only contains one proton and one electron total.
The first shell only hold 2 electrons, so this element has 1 electron in its first level. Hydrogen
the first energy levels hold 2, 8, and 18 a total of 28 electrons
2nd energy level, the electron arrangement is 2,1 at ground state
The first energy level in the electron cloud can hold a maximum of 2 electrons.
there are two electrons in the first energy level of every element except for hydrogen which only has one electron in the first energy level.
If the first energy level is complete with two electrons, then the elements hydrogen and helium have two elements in their electron configuration. Hydrogen has one electron in its first energy level, while helium has two electrons filling its first energy level.
Helium has 2 electrons in its first energy level.
The first element with an electron in the second energy level is lithium. Lithium has three electrons, with two in the first energy level and one in the second energy level.
Hydrogen's electron configuration is 1s1. It has only one electron. It is located in the first energy level.
The electron notation for sulfur is 2-8-6. This means that sulfur has 2 electrons in its first energy level, 8 electrons in its second energy level, and 6 electrons in its third energy level.
It has the same electron configuration as in a neon atom.
The first electron energy level can only hold 2 electrons. Hydrogen only has 1 first energy level electron as it only contains one proton and one electron total.
The electron arrangement of boron is 2 electrons in the first energy level and 3 electrons in the second energy level. The electron configuration of boron is 1s2 2s2 2p1.
Lithium is an atom that has three electrons. It has an electron configuration of 2-1, with two electrons in the first energy level and one electron in the second energy level.
Phosphorus has five valence electrons.