List all possible values of the magnetic quantum number ml for a 2s electron

The magnetic quantum number is one of four quantum numbers which are assigned to each electron in an atom to describe that electron's state.
The magnetic quantum number (ml) can be any integer between -l and +l.
Magnetic quantum number specify orientation of electrons in magnetic field and number of electron states (orbitals) in subshells.
Magnetic quantum number (ml) specifies the orientation in space of an orbital of a given energy and shape . Magnetic quantum number divides the subshell into individual orbitals which hold the electrons, there are 2l+1 orbitals in each subshell. 
For 2s orbital electrons:
Principal quantum n = 2.
Angular quantum number l = 0.
Magnetic quantum number ml = 0.

Ch4 is nonpolar and insoluble in water. since all of the hydrogen atoms are evenly spread around the carbon atom even through the c h bond is polar all the poles cancel each other out.

In any atom of any element, you will find protons and neutrons in the nucleus of any atom