Sublimation occurs more readily when definite weather circumstances are present such as low relative humidity and dry winds. Sublimation also occurs more at higher altitudes where the air pressure is less than at lower altitudes and energy such as strong sunlight is also needed. Sublimation happens a lot in the south face of Mt. Everest which have low temperatures, strong winds, intense sunlight, very low air pressure and the recipe for sublimation to occur.
Sublimation refers to the transition from solid to gaseous phases of matter, without the presence of a liquid stage. There are several weather conditions that can increase the likelihood of sublimation taking place. For example, sublimation happens when low humidity and dry winds are present. Sublimation is also more likely to occur at high altitiudes and with low pressure. Strong sunlight can also contribute to the appearance of sublimation.
The class of compounds that ammonia belongs to is it is categorized as a basic compound. As it posses a pH value or rating above 7, which is characteristic of basic substances, solutions.
The atomic number is the amount of protons in element's nucleus, that's one reason why. The second reason is that the atomic mass is protons and neutrons combined, their estimated value, which doesn't show how much neutrons are in an element. It does show combined, but not specifically neutrons
