A mixture called a solution, I think.
In the electron cloud model, the atoms are in unpredicted places. But in the Bohr model, atoms are in "rows"
The mass numbers of the different isotopes of that element are averaged according to their respective abundances in nature.
Answer: Soils are formed through the interaction of five major factors: time, climate, parent material, topography and relief, and organisms.
Soil structure affects plant growth in many, often surprising, ways. The most obvious effects are on root growth, which is strongly inhibited by hard soil, and which in turn influences the ability of the root system to extract adequate water and nutrients from the soil.
Explanation:
https://www.publish.csiro.au/sr/pdf/SR9910717
This is where I gather some info.
it is a <em>Chemical property</em>
