In how many groups and periods, the Modern Periodic Table of elements is divided?
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there are 18 groups and 7 periods in the modern periodic table.
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hello dude
Mendeleev arranged all 63 elements (all that were known at the time) in the order of their increasing relative atomic masses in a tabular form.
The table was divided into eight columns and twelve rows. Today the columns are known as groups and rows are known as periods.
Mendeleev arranged all 63 elements (all that were known at the time) in the order of their increasing relative atomic masses in a tabular form.
The table was divided into eight columns and twelve rows. Today the columns are known as groups and rows are known as periods.
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