Draw a circle then put p for proton and n for neutron the draw a circle over the circle then you take the how many atomic number and the Atomic Mass and subtract the mass by the number lets use n 14-7=7 then you draw 2 x's that is the maximum the first shells can fit then draw draw 5 shells but the maximum for that is 8 and the maximum for the other one is eight.
sketch
I will sketch.
Draw
sketch
sketch
well you just try your best to draw an apple with your echa sketch drawing tool
The atom of sodium has got 11 protons.
howzabout a lake?
draw
draw
No. It is an element. Although you can have one atom of sodium.
One atom of sodium and one atom of fluorine.