The elements are arranged in the increasing order of their atomic number and repeating periodic properties.
they are grouped by there collums
What are some ways the stars in the photo could be grouped or classified
Elements are grouped in such order to easily identify elements and their basic statistics.
they are grouped by the number of valence electrons.
Because all of the elements in the groups or families all have similar qualities. For example, all of the elements in the noble gas family are grouped together because they are stable elements.
They are grouped by similar characteristics
they are grouped by their chemical properties
Stars are classified using the Hertzberg-Russell Diagram.
elements are classified in the ?
there are grouped in clomesand rows ad groups
Elements are grouped by their chemical properties. But, in arranging the chemical properties, physical properties are distinguished.