Why does bond making release energy?

Bond making releases energy because it leads to a more stable, lower energy state for the atoms involved.

When atoms come together to form a bond, they do so because it allows them to reach a more stable state. This is based on the principle of minimum potential energy, which states that nature always tends to move towards a state of minimum energy. In the case of atoms, they achieve this by sharing, losing or gaining electrons, which results in the formation of a bond.

The process of bond formation involves the movement of electrons from a higher energy level to a lower one. This transition releases energy in the form of heat or light, which is why bond formation is an exothermic process. The energy released during bond formation is known as bond energy. It is the amount of energy required to break a bond, and it is always a positive value. The greater the bond energy, the stronger the bond.

The release of energy during bond formation can be explained using the concept of potential energy. When two atoms are far apart, they have high potential energy because of the repulsion between the electrons of the two atoms. As they come closer, the attractive forces between the positive nucleus of one atom and the negative electrons of the other atom start to dominate, leading to a decrease in potential energy. This decrease continues until the atoms reach a certain distance, known as the bond length, where the potential energy is at its minimum. This is the point at which the bond is formed, and the excess energy is released.

In summary, bond making releases energy because it allows atoms to reach a more stable, lower energy state. This is achieved through the movement of electrons to lower energy levels, resulting in the release of energy and the formation of a bond. The energy released during this process is known as bond energy, and it is a measure of the strength of the bond.

Study and Practice for Free

Trusted by 100,000+ Students Worldwide

Achieve Top Grades in Your Exams with our Free Resources:


    Expert-crafted notes designed to make learning the material engaging and clear.


    Comprehensive questions to boost your revision and exam preparedness.


    Extensive collection of previous exam papers for effective revision.

Need help from an expert?

4.92/5 based on477 reviews

The world’s top online tutoring provider trusted by students, parents, and schools globally.

Related Chemistry ib Answers

    Read All Answers
    background image

    Hire a tutor

    Please fill out the form and we'll find a tutor for you

    Phone number (with country code)

    Still have questions? Let’s get in touch.