based on Coulombs's law, every charge has unbounded force field f=q/r^2. 

an atoms force field does not end at atom radius, but extend to infinite. In whole, an atom or planet maybe electrically neutral, but Every single charge within has its own force field beyond distance, those forces overlapped to produce chemical bonding, magnetism and gravity. Ever wonder why is Fe=q1q2/r^2, Fg=m1m2/r^2, and mass proportional to nucleons numbers within it?

every neutral charged atom have 2 force fields, a positive field and a negative field. those forces decay at distance but never vanish. atoms positive force field decay at 1/r^2, negative force field decay at 1/r^3. 

every positive charge on the moon attracts every negative charge and repel every positive charge on earth, the net em forces between all charges of the moon and the earth is always end up an attraction force due to electrostatic induction. the attraction force we called gravitation force is nothing more than em force.

just like married couples could share sex, stranger can share sex. if you are charged, you always attract opposite charges and repel same charges.

make love to wife or any woman, is called sex. the sex between you and wife is the same as the sex between you and another woman. you can say 1 is em sex, 1 is gravitational sex. it is same thing.