Which of the following would have an electrostatic force of attraction between them ? cl- and 02- fr+ and p3- na+ and at cs* and li+

Fr+ and P3-

This is because the Fr atom has a negative charge and P3 atom has a negative charge, these two atoms have an electrostatic force of attraction because they both need full outer shell of electrons to be a stable atom.

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it