Is a planet’s mass important for a thick atmosphere? Why?

the mass of a planet doesn't matter, considering many

planets are made up of gas, and how in different situations,

atmospheres can be destroyed (The Sun burnt off Mercury's

Atmosphere). However, in some cases, the planet can be in a good

situation on the galaxic map, and have great conditions for an

atmosphere, such as Earth. In which case, the mass of an object can

attract a smaller object, causing gravity. Therefore, the bigger

the mass of a planet when in right and specific conditions, the

more atmosphere it can attract, if there is any floating by the

planet.

If it is bigger it will have more gravitational influence and

therefore gather more gases.

Explanation:

hope this helped!