How is it possible for one electrically neutral atom to exert an electrostatic force on other electrically neutral atom?

Explained

Explanation:

Although Atom are electrically neutral. But atom atom is combination of nucleus and electrons. The nucleus of the atom is composed neutron and positively charged protons. On the outside of nucleus at some distance are the electrons which are negatively charged. So, there is difference in position of the two differently charge species. So, this way a electrically neutral atom can exert a electrostatic force on other electrically neutral atom

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

heat the gas and measure the pressure