By their shared traits?
By their shared traits?
the periodic table is grouped according to similarities. when Mendeleev grouped his first periodic table they followed a pattern. any elements that contained similarities they were all put into the same column.
The periodic table is just a way of grouping elements according to their atomic numbers. It helps scientists to understand why different elements react in different ways.
Because they both have 5 electrons in their outer shell. This is the way that the elements in the periodic table were grouped.
Stars are grouped to make a constellations because the way you look at it,it looks that way.
they discovers a repeating pattern of properties
One way scientists group species is when they check their appearance and how closely related they are to other organisms
graphs
graphs
yes it does
What is a Galaxy. I'll take astrophysics for 400.