what did Mendeleev see that elements it into
it's an element!!
There are more non-elements than elements. Non-elements refer to everything that is not classified as an element, such as compounds, mixtures, and substances that do not fit the definition of an element.
Pt and an atomic number of 78
How do the various elements fit into the scope of the picture?
When an element didn't fit the pattern in his periodic table, Dmitri Mendeleev prioritized the properties of the elements over their atomic weights. He would leave gaps for undiscovered elements, predicting their properties and placing them where they would fit according to their characteristics. This approach allowed him to maintain the overall organization of the periodic table, leading to the eventual discovery of elements that confirmed his predictions.
It is a value which appears not to fit in with the other data elements.
He rearranged the table, placing elements in order of atomic weight, not by property. This resulted in elements that had similar properties but were actually very unrelated from being placed incorrectly, and lead to them being put where it made more sense. After the reordering, they were also very much aligned by their properties, thus fixing the problem of those elements that didn't fit.
Sounds like you are talking about a regression or regression analysis.
Yes, Dmitri Mendeleev made the Periodic Table of Elements, and interestingly enough, he did it without knowing all of the natural elements! As scientists discovered new elements, they realized the elements fit right into place on Dmitri's table.
Elements are the different parts of the composition of a photograph that fit together to make one outstounding image (white balance, apreture, shutter speed, and many more)
The middle block of elements that don't fit in a specific group in the periodic table is known as the transition metals. These elements typically have properties of both metals and nonmetals.
Hydrogen is unique among the elements, something of an oddball. It does not fit well into the other groups such as the metalloids, halogens, or alkali metals, so it is given its own group.