Question

9) Describe mordern periodic table with details.​

Answer 1

Answer:

The modern periodic table is based on the modern periodic law put forward by the English physicist Henry Moseley, which states that “the properties of elements are periodic functions of their atomic numbers”. Periodic trends in the properties of the elements can be observed down the groups and across the periods of the modern periodic table. The periodic table is a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen, to the element with the highest atomic number, oganesson. The atomic number of an element is the number of protons in the nucleus of an atom of that element.

Explanation:

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Answer 2

The morden or long form of the periodic table is based on the modern periodic law . The table is the arrengments of elements in increasing order of their atomic numbers .The modern periodic Table is the presents form of the periodic table .It is consists of 18 vertical columns and 7 horizontal rows