What is the energy required to form and break chemical bonds?

It is related to the atomic radius. The smaller the radius, the greater the binding force. This is true, but it depends on what grade of chemistry you are in. A less in-depth statement:

The breaking of a chemical bond requires energy to be absorbed

The formation of a chemical bond requires energy to be released. (It’s actually easy to remember. 1. Officially, to form a chemical bond, the material becomes stable. If it is stable, its own energy will become less, so Release energy, and vice versa

2 A little weird, two people have to pay and contribute when they get married, let alone two groups. Of course, when they combine, they must release some energy to make everyone lively. Hehe, it’s just a joke< /p>

As for the amount of this energy, please see below

Chemical bond breaking belongs to the category of chemical reactions. It depends on the composition of the chemical substance. Generally, the bond energy of atoms + atoms is greater than that of molecules + molecules. For example, diamond is si The combination of atoms is greater than the combination of dry ice (co2) molecules (generally speaking, the atomic crystal is larger than the metal crystal than the molecular crystal)

If the composition is similar, then look at the atomic radius, the horizontal axis in the periodic table of elements The atomic radii of the rows decrease from left to right, and from top to bottom (if they are not in a horizontal row, or in a period, generally speaking, the atomic radius of a larger period is much larger) (ignoring the lanthanide series for now, Don’t worry about it if you are in high school)

It’s not too detailed. In fact, the book explains it better. You’ll understand after reading the book a few times