Rows by Engery Rings supposedly, Columns by oxidation number, and the rest by atomic number.
The vertical columns of the periodic table are called groups. The horizontal rows of the periodic table are called periods. The number of electron shells an atom has corresponds to the number period of the periodic table it is located in. The oxidation number or number of valence electrons an atom is depicted by the group it is in. For example: Calcium (Ca) has an oxidation number of +2 and has 2 valence electrons( outermost electrons) which means it belongs to group 2 of the periodic table called the "alkali earth metals".
groups are the vertical columns on the periodic table
The vertical columns of a periodic table are called groups or families. They share similar chemical properties because they have the same number of valence electrons.
the benefit is that you can tell the atomic number atomic mass its symbol and where it is on the periodic table
Scientists call columns on the periodic table "groups" or "families." These columns contain elements with similar chemical properties due to their shared number of valence electrons.
The columns in the periodic table are called groups or families. These columns contain elements with similar chemical properties due to their shared number of valence electrons.
The vertical columns on the periodic table are called groups or families.
groups
The vertical columns of the periodic table are called groups or families.
The columns on the periodic table are called Groups.
The elements arranged according to their atomic number in the table are called periodic table.