To Nathan, who is far away in the Tower of the Rainbow. After Principal Fisher sent in a series of teaching materials and gave a lot of advice, Reiner waited for feedback and began his own research.

The materials he had asked Mr. Osborne to buy had finally been sent to Crescent Academy yesterday, and Reiner couldn't wait to get to the lab early this morning, ready to continue his isotope research.

The experimental process is very simple, he purchased several identical elemental elements from different planes, in order to verify that the relative elemental mass of the same element will be different due to regional distribution and other reasons.

He first had to find out whether isotopic phenomena were universal to this world and not unique to the "Burren" element.

Reiner called Charlotte, and the two of them worked in the lab for a whole day before finally measuring the relative elemental masses of the four elements that Reiner had purchased.

Among them, the elemental matter collected by the "Sterner" element in the four halves has four relatively different relative elemental masses, the elemental matter collected by the "Carborne" element in the four halves has three relatively different relative elemental masses, and the other two elements, "Prambo" and "Safron", have two relatively different relative elemental masses.

There are three elements that do not have much error in their relative elemental masses, and Reiner has also recorded them properly.

Experiments have proved that this phenomenon of the same element, but with different relative qualities, exists not only in the "Burren" element, but also in other elements, and does not distinguish between metallic or non-metallic elements.

Unfortunately, Reiner was never able to isolate the pure isotopes or prove that there were indeed two particles with different relative atomic masses.

On Earth, isotopes are generally simply divided into stable isotopes and unstable isotopes, the difference lies in the length of the half-life, that is, the general time of radioactivity, generally speaking, isotopes with a half-life of more than ten years are called stable isotopes, and Reiner can now measure obvious differences, which should also be stable isotopes.

Reiner has a hard memory of the theory needed to isolate isotopes, and vaguely knows that isotopes can be separated by temperature or reaction speed, and as for proving the existence of isotopes, perhaps mass spectrometry can help.

But the theory involved in the mass spectrometer is already the content of a middle-level mage, and Reiner can't get in touch with it for a while, you know, the spell model of stable electric field and magnetic field magic not only requires five hundred academic points to be exchanged, but also the requirements for users are above four rings, and it must have a corresponding magic level to modify it to the appearance that Reiner needs, and Reiner really can't get one out of it himself for a while.

Reiner decided to write the paper first, at least to file it in the Rainbow Tower to protect his rights and interests, and as for how to prove the isotope, he had to continue to figure out how to do it.

If Reiner succeeds in throwing bricks and stones, and someone gets inspiration after he publishes his paper and succeeds in isolating isotopes, then Reiner himself can get a part of the world's feedback, and this wave will not be a loss.

Of course, the best-case scenario is that Reiner extracts the isotope himself, but in the current situation, this hope is somewhat slim.

In the evening, Reiner sat at his desk with a quill in hand and began to write his own papers.

A Hypothesis on the Mass Difference of Relative Elements, and Its Influence and Discussion on the Laws of Elements.

"The relative elemental mass has been proposed for decades, and the mages have made precise measurements of the relative elemental mass of common elements, but I found in my experiments that the relative elemental mass of several elements has an indispensable error compared with the accepted value......

Reiner recorded his experimental process in detail, and made a detailed description of the origin, measured values, and errors of the five elements, which were authentic and credible, and at the same time, Reiner also recorded in detail the data of several other elements that did not have measurement errors, so as to prove that there was no problem with the measurement array used in the experiment.

For these elements with the same properties, but different relative masses of the elements, Reiner named them isotopes.

After writing this, he began to derive the laws of the elements.

Reiner thinks that the idea of ordering by relative element mass is correct, but there is a reason for the presence of isotopes described above, so Lanchester. Lord Stanion's arrangement is negligent.

Lord Stenion's list of elements has eight columns, which include most of the main elements, but some special elements still linger outside the form, and even if they are periodic, there are some forced approximations of elements in the same row.

In general, there are still many problems with this original periodic table, and it cannot be regarded as a true reflection of the "period" nature.

So Reiner rearranged the list of elements that Lord Stanion had arranged.

He first adopted the familiar vertical arrangement, in which elements with similar properties were grouped into one column, and the positions of several elements with similar relative masses due to isotopic reasons were reversed, and some vacancies were reserved for some elements that were similar to those with lively or special properties.

"It's good that I don't have to do playing cards to sort them."

Reiner laughed to himself, presumably Lord Stanion had already received some feedback from the world when he proposed periodicity, and he was really standing on the shoulders of giants this time.

After arranging this periodic table, Reiner simply made a bold assumption and predicted the existence of some elements.

Reiner doesn't know if there are noble gases in this world, but at present, there are no such elements in Lord Stenion's elemental table, which itself is not easy to combine with other elements, and most of them exist in nature as elemental substances, which are difficult to find.

He prophesied that between the elements "Florin" and "Sodeon" there should be an element of extremely inactive nature, which should be a gas, and Reiner made several predictions about this gas based on the properties of the two elements, which were recorded with several other speculations as the content of the final chapter.

It was late at night when he finished writing these papers, and Reiner put down his pen, and there seemed to be a little ripple in his heart, but it seemed as if he was still a breath away, and he didn't move.

As if in the deepest darkness of the night, in the silence, a storm was brewing that would sweep the world.

He shook his head, still thinking about why the routine little guy hadn't visited today, when he heard a cat meow from the windowsill.

However, when Reiner poked his head out, he found that the tiger kitten was not on the windowsill, but on the ground downstairs.

Next to the kitten, there was a girl squatting, feeding it with food, judging from the school uniform, it should indeed be a student of Crescent Academy.

"Hey, who's this?"

Reiner thought that the students should have gone to bed with the lights out.