The force of a gas's outward push divided by the area of the walls of the container is the gas's

Pressure

Explanation:

Pressure : It is defined as the force exerted on an object per unit area.

It can be defined as the thrust (compressive force acting perpendicularly to the surface of the body) acting per unit area.

Mathematical representation

If force F act upon an object and cross section area  of an object is A.

Then , pressure=

Unit of pressure: S.I unit of an object is pascal.

In gas cases, pressure is a exerted force on the wall of container per unit area of the wall.

Hence, the force of gas's outward push divided by the area of the walls of the container is the gas's pressure.

they are both synthetic elements

explanation:

d

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