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How could the modern periodic table remove various anomalies of Mendeleev's periodic table?

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Answer 1

Hey..!! HERE IS YOUR ANSWER...!!



How could the modern periodic table remove various anomalies of mendeleev's periodic table?

1.) The atomic mass in Mendeleev's periodic table does not increase regularly. therefore, it was impossible to predict the number of elements between two elements.

The Modern periodic table has been made according to the increasing atomic number

Modern Periodic Law

States that '

The properties of an element are the periodic function of its atomic number.

The atomic number gives us the number of protons in the nucleus of an atom. the atomic number increases by one as we go from one element to the next. thus, this makes it easy to ascertain how many undiscovered elements may be there between two known elements.

2.) Mendeleev's periodic table was made according to increasing atomic masses. we know that of an element have same chemical properties and atomic number, but different atomic masses. So, the concept of isotopes can not be satisfied.

The Modern periodic table is according to increasing atomic numbers. Therefore, the problem of isotopes is easily dealt with.

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@ujjwalusri

Answer 2

Hey Mate

your answer is --

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COMPRESION BETWEEN MENDELEEV PERIODIC TABLE AND MODERN PERIODIDTABLE
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◆ Mendeleev's Periodic Table :-

• In this table , the classification of elements is based on their atomic weight

• Mendeleev's original periodic table contains 8 vertical columns and 12 horizontal rows .

• Some misfit anomalous paira exist , e.g., cobalt (At Wt = 58.9) has been placed ahead of nickel (At Wt = 58.7).

• Isotopes were not assigned separate position position even thought they have different atomic weight.

• Electronic configuration and properties of elements can't be president yes from their position in the periodic table because atomic weight and properties are not related.
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◆ Modern Periodic Table :-

• In this table , the classification elements is based on their atomic numbers .

• Modern periodic table contains 18 vertical columns and 7 horizontal rows.

• In the modern periodic table , there are no such anomalies . The element cobalt is placed ahead of nickel because it's atomic number iav27band that of nickel is 28 .

• Isotopes are assigned the same position because they have same atomic number.

• Electronic configuration and properties of elements can be predicted from their position in the periodic table because atomic number is related to the properties of elements .


From the above compression modern periodic table remove various anomalies of Mendeleev's periodic table.

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