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Independently by Dmitri Mendeleev and Lothar Meyer in 1869
The Periodic table
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It can't. the properties of an element determine it's group placement, without knowledge of these properties (or, indeed, the element itself) it would be impossible to place an element in it's proper place on the periodic table.
This scientist is the Russian chemist Dimitri Mendeleev.
It's probably Mendeleev you're after. He came up with the first version of a Periodic Table of the elements, and used this to predict the properties of elements that hadn't been discovered at that time.
Dmitri Mendeleev
Independently by Dmitri Mendeleev and Lothar Meyer in 1869
The Periodic table
color
Periodic table
Comparing the properties of the new element with the properties of the other elements in the group we can make this prediction.
He used an atomic mass, and also an atomic mass of units. Therefore he was able to find the pattern. I got this answer off of Mr. Kebblers class.
It can't. the properties of an element determine it's group placement, without knowledge of these properties (or, indeed, the element itself) it would be impossible to place an element in it's proper place on the periodic table.
So you can classify the elements into groups.
This scientist is the Russian chemist Dimitri Mendeleev.
It is intended to help users see groups of elements with similar properties.