Water is a liquid substance based on the combination of two hydrogen atoms and one oxygen. At one time, she laid the foundation for life on Earth, and now any organism depends on her and needs regular recharge. Water, like everything around, is made up of molecules. But how tight are they to each other, and what is in between?
How did water appear on Earth?
The fact that water is found on Earth in much larger quantities than on other planets of the solar system haunts scientists. They are constantly conducting research and trying to find out what caused the formation of liquid on the third planet from the Sun.
It has already been proven that water was formed on Earth no later than 2.7 billion years ago. There are several hypotheses for its origin, but the most plausible is the one that is based on extraterrestrial sources. Comets in the Kuiper belt contain water reservoirs that are identical in composition to the Earth's oceans. Scientists believe that the liquid could have entered the planet as a result of collisions with a certain number of objects from this area.
In 2017, geophysicists put forward the theory that water could have formed in the bowels of the planet, and not get to the surface along with comets.
What is in between water molecules?
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When water turns into a gaseous state, the molecules move away and are distributed in the available volume. At this moment, there is air between them, an empty space. However, when a substance is in a liquid state, its particles adhere tightly to each other, forming a single whole.
In fact, there is nothing between the water molecules, since there is no free area. However, if you study the structure of the atom in more detail, you can come to the conclusion that such a statement is only a generalized answer.
Around the nucleus of an atom is an electron shell that holds it inside the molecule and provides a clear structure.
Therefore, when a liquid fills a certain space, it keeps its shape due to the electron shell, which is located between the molecules and is an integral part of them.
Between the water molecules there is an electronic shell that envelops the atoms and unites them into a single whole. Without it, the fluid could not have a single structure and be whole.