That day, I stumbled upon the concept of the D-track domain while searching. I was curious, so I clicked in.

It turns out that it is the d orbital, which is the electron orbital in chemistry. The d orbital is somewhat peculiar because it has energy level interlacing.

To be precise, 3D orbits and 4S orbits exist. Depending on the magnitude of the energy, the d orbital is in front because of its low energy, and the high energy of the s orbital is in the back.

However, the energy of the 3d orbital is higher than that of the 4s orbital. According to the principle of lowest energy, electrons must first occupy the 4s orbital.

As a result, the arrangement of energy levels is confused. This is the case with the transition elements scandium and yttrium. We know about the conservation of energy, but we must not have thought that it has anything to do with symmetry.

When we talk about symmetry, we have to talk about Noether's theorem. Noether's theorem is that a symmetry necessarily corresponds to a conservation law.

Noether was a German mathematician known as the mother of modern mathematics. She has made outstanding achievements in many fields of mathematics and has worked hard all her life.

She was originally a mathematician, but she discovered the theorem of physics. This means that the development of yin mathematics has profoundly affected physics.

。 Related to the law of conservation of energy is the law of conservation of mass, also known as the law of conservation of matter. Because of its similarity with the law of conservation of energy, it is also called the law of conservation of mass and energy.

The law of conservation of mass is most evident in chemical reactions. The total mass before and after the reaction remains unchanged, which is our most intuitive and initial understanding of the law of conservation of mass.

Of course, it is not only in chemical reactions, but also in physical reactions. There is a question about putting a pound of salt in a pound of water, so is the total weight two pounds?

Some people say that it is not equal to two catties. Because the solubility of table salt is 36/100, that is to say, not all salt particles are soluble in water, and some are still in solid form in water.

However, even this does not mean that some of the undissolved salt particles are not in the water. As long as it is in water, whether it is dissolved or not, the quality should remain the same.

We know that particles do have solubility, but it depends on the situation. If it is cold water, the solubility is low.

If it is hot water, the solubility is high. The water temperature determines the upper limit of solubility. Someone has done an experiment, a pound of salt dissolved in a pound of water, when not stirred, it is 1000 grams.

After stirring, it is 999.9 grams. I think the 0.1 gram mass difference may be caused by the evaporation of water, so the result should be two catties.

In fact, if you think about it carefully, it will be yin. The salt is dissolved in water, and the density of the solution is greater than the density of the original two objects, and the volume does not change.

However, the density of the solution is equal to the average density of the two objects, so their total mass should be constant.

Due to the errors in the experiment, it is possible to make small differences of a few tenths of a gram. There is a question of where the dissolved table salt particles go.

Since dissolution is a physical reaction, then there is no change in atoms involved. Molecules are moving, and if the particles are on the molecules, won't they be shaken off?

So, particles can only be in atoms. If the particle is in the electron orbital, some of the electrons are bound to undergo a change in the orbit.

If there is a jump, there will be light. However, we do not see the light. Therefore, the particles are not in the electron orbital.

In this way, the particles can only go to the nucleus. But isn't there a potential barrier around the nucleus? Can particles pass through potential barriers?

If this is the case, the tunneling effect is all around us. Things don't stand up to scrutiny, and the more you think about the details, the more you think about them.

Mizukawa wrote a line on the paper and left. It is said that Rokuko Furai, Dueñas and Margarita were all unable to attend due to work reasons.

Mizukawa could only shake his head and sigh, and continue on his own.