There are 7 different letters, each to represent each shell. They are: 1. K 2. L 3. M 4. N 5. O 6. P 7. Q
The first shell is called K, the second Shell is called L and the third shell is called M
k
electron
Each shell represents a distinct state of electron energy.
1s22s22p5
Na^+ represents a sodium atom that has lost ONE ELECTRON.
The A represents the central atomand always has an implied subscript one.The X represents the number of sigma bonds between the central atoms and outside atoms. Multiple covalent bonds (double, triple, etc) count as one X.The E represents the number of lone electron pairs surrounding the central atom. The sum of X and E, known as the steric number, is also associated with the total number of hybridized orbitals used by valence bond theory.
H
electron
Each shell represents a distinct state of electron energy.
Electron
The letter C represents 100
It represents an Energy State
1s22s22p5
A letter that represents a number is called a variable.
Electron affinity.
Cl-
Electron Dot Diagram
1s2 2s2 2p6