Pressure is a measure of force per unit area.
Pressure is defined as the force exerted on a body across a unit area. The unit of pressure is N/m² or Pascal.
The more the force acting on a body the more the pressure felt. A small surface area and a large force increases pressure on a body.
it is right to say that pressure is proportional to force but inversely proportional to area.
the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons