There are 11 electrons in atom 11, the atomic number almost always corresponds with the number of electrons (unless it is an isotope)
about 16
17 electrons.
30 electons
7 protons
The Answer is 4.....!
One - assuming the atom is not an ion.
In one atom of Oxygen there are 8 electrons
60
it has 11 electrons
Six in the outer (2nd) shell
An oxygen atom has six (6) electrons in its outer shell.
Ionic