Question

Explain the Limitations of modern periodic table​

Answer 1

Answer:

The limitations of modern periodic table are :-

i) It could not provide a proper plzcement of hydrogen.

Mendeleev's periodic law could not assign a fixed position to hydrogen in the periodic table because hydrogen resembled both alkali metals (Group 1) and halogens (Group 17) in some of its properties. Hydrogen reacts with metals to form ionic compounds called hydrides and also with non-metals to form covalent compounds.

ii) no place to isotopes of various elements is given.

According to Mendeleev’s Periodic Law, isotopes of an element must be given separate places in the periodic table because they have different atomic masses.

Explanation:

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