Gaseous hydride of an element...

The stability of hydrides is related to the non-metallic properties of the elements。The stronger the non-metallic nature of the element, the more stable the gaseous hydrogen fengpide formed. From top to bottom, with the increase of the number of nuclear charges, the non-metallic properties of the non-metallic elements of the same main group weaken, and the stability of gaseous hydrides gradually weakens. Non-metallic elements in the same period, from left to right, with the increase of the number of nuclear charges, the non-metallic property crescendos, and the stability of gaseous hydrides crescendos.

Hydrides are binary compounds formed by hydrogen with other elements. In the periodic table, almost all elements except noble gases can form split hydrides with hydrogen, which are roughly divided into three categories: ionic, covalent and transitional, and their properties are different.

Gaseous hydrides generally refer to non-metallic hydrides, that is, gaseous compounds (generally at room temperature and pressure) that are non-metals combined with hydrogen with their lowest valence. It is also necessary to say that the gaseous hydride generally refers to simple hydrides, such as C element corresponds to CH4 instead of C2H4, C2H6, etc., and Si element corresponds to SiH4 instead of Si2H6 and so on.

1. Gaseous hydride generally refers to the air hail of Senfan's non-metallic hydrogenation deficit, that is, the gaseous compound (generally at room temperature and pressure) in which the non-metal combines with hydrogen with its lowest valence.

2. Generally speaking, gaseous hydride refers to simple hydride, such as C element corresponds to CH4 instead of C2H4, C2H6, etc., Si element corresponds to SiH4 instead of Si2H6, etc.

Hydrides are liquid elements at room temperature, because of the existence of hydrogen bonds, water becomes liquid at room temperature, and other short-period elements are gaseous except for those metal hydrides that are ionic compounds.

Hydrides are binary compounds formed by hydrogen with other elements. However, in general scientific and technological work, the binary compound of hydrogen and metal is always called hydride, and the binary compound of hydrogen and non-metal is called a certain hydrogen. In the periodic table, almost all elements except noble gases can form hydrides with noisy hydrogen, which are roughly divided into three categories: ionic, covalent brightening and transitional, and their properties are different.

The gaseous hydride must be a non-metallic hydride, and most of the aqueous solutions of non-metallic hydride are acidic, and the alkaline only ammonia.

Because salts are compounds made up of metal ions and acid ions. The hydride of the metal element is not gaseous, so the metal ions in the salt must be formed by non-metallic elements, then only the ammonium ion meets the requirements, then the element is nitrogen, its hydride is ammonia, the most ** oxide corresponding to the hydrate is nitric acid, and the two reactions produce ammonium nitrate. The equation is:

nh3+hno3=nh4no3+h2o

Nitrogen, N, NH3 + HNO3 to generate NH4NO3, the modified element must have multiple valence states, hydride is a gas, N, S, Cl, etc. can be considered, and salts can be generated, then only N, ammonium salt.