There is no element symbolized as "M". If you find M in a chemical formula or equation, it most likely means any metal element (i.e., iron, silver, etc). There are three metals which begin with M: magnesium (Mg), manganese (Mn) and molybdenum (Mo).
I .. N:I .. I Sorry about the wierd spacing but there is a single bond on the top of the N and on the bottom
It represents the number of valence electrons in the atom.
G.N. Lewis
They can also be called Lewis Dot Structures or Diagrams, named after a scientist names Gilbert Norton Lewis
The IronMan Triathlon Tattoo looks like a red M with a dot hovering over it. That's why it's call an M-Dot.
P..h.p
linear formula
Lewis dot structure
The formula for calculating the momentum of an electron is p mv, where p is the momentum, m is the mass of the electron, and v is the velocity of the electron.
The formula of cyclopentane is C5H10. The electron dot structure of cyclopentane would show each carbon atom with four valence electrons forming single bonds with adjacent carbon atoms, resulting in a pentagon shape.
The electron-dot formula for HCl shows that hydrogen has 1 valence electron denoted as ● and chlorine has 7 valence electrons denoted as ●●●●●●●. The bond between hydrogen and chlorine is represented by a single line, indicating a single covalent bond.
The formula used to calculate the speed of electrons in a given system is v e/m, where v represents the velocity of the electron, e is the charge of the electron, and m is the mass of the electron.
The electron dot formula for SF6 would show 6 pairs of dots around the central Sulfur atom, representing the 6 Fluorine atoms bonded to it. The Sulfur atom will have 12 valence electrons around it in total.
I .. N:I .. I Sorry about the wierd spacing but there is a single bond on the top of the N and on the bottom
A list of chemical elements and symbols is at this link.
The valence shell of sodium has one electron.
2 or more