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Mendeleevs Periodic Table

CBSE XI Science Chemistry Classification of Elements and Periodicity in Properties

sir which is the best method to learn s-block elements &p-block elements ?

Asked by 25th February 2008 4:53 PM
Answered by Expert

CBSE X Chemistry Periodic Classification of Elements

What is the main difference between Mendeleev's and mordern periodic Law? 

Asked by pdcavita 29th November 2017 10:16 PM
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CBSE X Chemistry Periodic Classification of Elements

Why the position of hydrogen was not fixed in Mendeleev's periodic table  .

Asked by pdcavita 29th November 2017 10:21 PM
Answered by Expert

CBSE X Chemistry Periodic Classification of Elements

On what basis Mendeleev classify the elements? 

Asked by pdcavita 29th November 2017 10:22 PM
Answered by Expert

CBSE X Chemistry Periodic Classification of Elements

Why did Mendeleev left some gaps in his periodic table? 

Asked by pdcavita 29th November 2017 10:23 PM
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NEET1 ALL Class Inorganic Chemistry I Periodic Table and Periodicity

 periodic table of today owes it development to two chemist namely

1) RutherFord  and moseley 

2) Alexander newlands and dobereiner

3)mendeleev and lothar meyer

4)de broglie and neil bohr

Asked by ashutosh25807 10th December 2017 8:35 PM
Answered by Expert

CBSE X Chemistry Periodic Classification of Elements

Why is atomic number considered to be a more appropriate parameter than atomic mass for the classification of elements in a periodic table?

Asked by prabal 14th March 2018 9:36 AM
Answered by Expert

CBSE X Chemistry Periodic Classification of Elements

how were the positions of cobalt andnickel resolved in the modern periodic table

Asked by shamim.ayanahmad 14th March 2018 11:58 PM
Answered by Expert

ICSE X Chemistry

what is easy way to memorize periodic table

Asked by Nitinkhaire2008 5th May 2018 11:23 AM
Answered by Expert

ICSE IX Chemistry The Periodic Table

How many period and groups are there in modern periodic table  

Asked by disharksh04 13th August 2018 6:45 PM
Answered by Expert

CBSE X Chemistry Periodic Classification of Elements

........ is called as the father or architect of periodic table. Name the element having a duplet state naturally.

Asked by abhisheknagargoje 1st December 2018 12:58 PM
Answered by Expert

CBSE X Chemistry Periodic Classification of Elements

Which period of modern periodic table is told to be incomplete and why

Asked by saradamahapatra9999 18th February 2019 11:24 AM
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CBSE X Chemistry Periodic Classification of Elements

the neutron was discovered in 1932 then how mendeleev calculated atomic mass

Asked by devchaudhari 18th February 2019 4:14 PM
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CBSE X Chemistry Periodic Classification of Elements

What are the similarities between Mendeleev's periodic  table modern periodic tablr

Asked by saradamahapatra9999 21st February 2019 1:27 PM
Answered by Expert

CBSE X Chemistry Periodic Classification of Elements

Please write all the trends in groups and periods of periodic table with reasons (each reason should be atleast of 3 -4 lines)

Asked by sajal2402 9th March 2019 10:50 AM
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Maharashtra X Chemistry

How many groups and periods are there in Mendeleev's periodic table?

Asked by saradamahapatra9999 21st June 2019 2:45 PM
Answered by Expert

CBSE X Chemistry Periodic Classification of Elements

How many groups and periods were in Mendeleev's periodic table?

Asked by saradamahapatra9999 22nd June 2019 1:11 PM
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CBSE X Chemistry Periodic Classification of Elements

Write note on position of isotopes in the Mendeleev's and modern periodic table  

Asked by prathameshmane3622 10th July 2019 8:52 PM
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CBSE X Chemistry Periodic Classification of Elements

The position of cobalt and nickel was anomalous pair in Mendeleev's periodic table. Please explain if it was merit or demerit of Mendeleev's periodic table?

Asked by saradamahapatra9999 10th August 2019 11:35 AM
Answered by Expert

ICSE IX Chemistry The Periodic Table

What do you know about the occurrence of elements and their classification?

Asked by rps3330397 22nd August 2019 3:39 PM
Answered by Expert

CBSE X Chemistry Periodic Classification of Elements

Please answer the 17

Asked by nk9764831 12th February 2020 10:23 PM
Answered by Expert

CBSE XI Science Chemistry Classification of Elements and Periodicity in Properties

what is vertical Collumn

Asked by kumarm2793 24th February 2020 3:23 PM
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CBSE X Chemistry Periodic Classification of Elements

state three main points of difference between Mendeleev periodic table and Modern Periodic Table

Asked by abhisv8953 21st April 2020 2:59 PM
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CBSE X Chemistry Periodic Classification of Elements

compare and contrast the arrangement of elements in 'mendeleev's periodic table and the modern periodic table  

Asked by pchandrakala20 22nd April 2020 9:57 AM
Answered by Expert

CBSE X Chemistry Periodic Classification of Elements

please help me with the 3rd question

Asked by acshanadhana15 1st September 2020 7:13 PM
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CBSE X Science

Distinguish between mendeleeve's periodic table and the modern periodic table

Asked by mirsahilsahil1 15th October 2020 10:25 AM
Answered by Expert

ICSE VII Chemistry Atomic Structure

The tabular arrangment of elements in horizontal row and vertical columns.............

Asked by arpanakispotta32 20th February 2021 9:48 AM
Answered by Expert

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