Question

Укажи характеристику кремния: вступает в реакцию с водородом в присутствии катализатора имеет запах кристаллическая решётка сходна с кристаллической решёткой алмаза легкоплавкое твёрдое вещество

Answer 1

Ответ:

кристаллическая решётка сходна с кристаллической решёткой алмаза

Answer 2

Characteristics of Silicon

Silicon is a chemical element with the symbol Si and atomic number 14. It is a metalloid, meaning it has properties of both metals and nonmetals. Here are some key characteristics of silicon:

1. Reactivity with Hydrogen: Silicon can react with hydrogen in the presence of a catalyst. This reaction can produce various silicon hydrides, such as silane (SiH4).

2. Crystal Structure: Silicon has a crystalline structure that is similar to the crystal lattice of diamond. This means that the arrangement of silicon atoms in its solid form is similar to the arrangement of carbon atoms in diamond.

3. Odor: Silicon itself is odorless. However, some silicon compounds may have distinct odors. For example, silane (SiH4) has a characteristic odor similar to that of rotten eggs.

4. Melting Point: Silicon is a solid at room temperature and has a relatively high melting point of 1,414 degrees Celsius (2,577 degrees Fahrenheit). This makes it a refractory material, meaning it can withstand high temperatures without melting or deforming easily.

5. Lightweight and Hard: Silicon is a lightweight and hard substance. It has a density of 2.33 grams per cubic centimeter, which is lower than that of most metals. At the same time, it is quite hard, with a Mohs hardness of 7, making it harder than most other materials except for diamond and a few other minerals.

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