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The elements to the left of the stairs in the periodic table are called metals. However, within metals you have different families as it is indicated in the periodic table in the image below: Was this helpful?
The modern periodic table is a chart containing the elements arranged in order of increasing atomic number. A vertical column, called a group, contains elements with similar properties. A horizontal row is called a period. The atomic number of the elements in a period increases from left to right along the row. Before the development of the modern periodic table, there were other attempts to arrange the elements in a useful way. For example, DÃ¶bereiner arranged groups of three elements with similar properties into âtriads'. Newlands and Mendeleev arranged the elements in order of increasing relative atomic mass.