It is different for each element. In hydrogen, there is one.
A nitrogen atom has seven electrons.
An atom's atomic number is the number of electrons.
The neutral atom of sodium has 11 electrons.
There are 17 electrons i a neutral atom of chlorine.
You need to specify the atom.
A Mercury atom has 80 electrons.
The number of electrons depends on what type of atom it is.
A nitrogen atom has seven electrons.
The neutral atom of potassium has 19 electrons.
An atom's atomic number is the number of electrons.
Helium atom has 2 electrons.
The neutral atom of phosphorus has 15 electrons in the atom.
The chlorine atom has 17 protons and electrons.
There are 5 valence electrons in the atom phosphorus.
The neutral atom of sodium has 11 electrons.
There are 17 electrons i a neutral atom of chlorine.
If there are excess electrons in an atom, the atom is likely to be ionized; that is, the stom will emit the electrons.