It organizes the elements.
Three main classes are:MetalsNon metalsTransition elementsThey are present in periodic table.
There are 7 periods in the modern periodic table.
The main metals in the periodic table are iron, copper, zinc, silver, gold, and platinum. Metals are typically found on the left side of the periodic table and are known for their conductivity, malleability, and luster.
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In Mendeleev's periodic table, the elements were arranged in the increasing order of their atomic masses and repeating periodic properties.
they are all important
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The main families of the periodic table are the alkali metals, the alkaline earth metals, the halogens, and the noble gasses. see them here to view where they are one the periodic table.. hopefully this answers your question.
The lanthanides are a series of elements that are placed at the bottom of the periodic table. They are located in the f-block, specifically in the period below the main body of the periodic table. The lanthanides have atomic numbers 57-71.
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The bottom section of the periodic table is for the lanthanides and actinides, which are also known as the inner transition metals. These elements are placed below the main body of the periodic table to keep it compact, as they would otherwise disrupt the table's organization.