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The elements in Mendeleev's periodic table are arranged on the basis of:

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Important Questions on The Periodic Table

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Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
What were the criteria used by Mendeleev in creating his periodic table? 
EASY
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
What were the criteria used by Mendeleev in creating his Periodic Table?
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Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table

Which of the following statement are incorrect regarding Mendeleev's periodic table?

(a) Mendeleev considered compounds formed by elements with oxygen and hydrogen.

(b) In the table Ni is placed before Co

(c) Eka-silicon in Mendeleev's periodic table is gallium

(d) The properties of the elements are periodic functions of their atomic masses.

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Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Elements in Mendeleev’s periodic table have been arranged according to: 
 
MEDIUM
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table

An element X form an oxide X2O3. In which group of Mendeleev's periodic table, is this element X.

 

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Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
According to Mendeleev's periodic law, properties of elements are periodic function of their _____
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Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
The number of Groups in Mendeleev's Periodic table was:
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Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
14 elements after actinium is called
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Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
State Mendeleev's periodic law.
MEDIUM
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Write the formulae of chlorides of Eka-silicon and Eka- aluminium, the elements predicted by Mendeleev.
MEDIUM
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
What names were given by Mendeleev to the undiscovered elements (a) Scandium (b) Gallium and (c) Germanium?
EASY
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
What are groups and periods in the periodic table?
HARD
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
What physical and chemical properties of elements were used by Mendeleev in creating his periodic table? List two observations that posed challenge to Mendeleev's periodic law.
(a) Why do we classify elements?
(b) What were the two criteria used by Mendeleev in creating his period table.
(c) Why did Mendeleev have some gaps in his periodic table?
(d) In the Mendeleev's periodic table, why was there no mention of noble gases like helium, neon and argon?
(e) Would you place the two isotopes of chlorine Cl-35 and Cl-37 in different slots, because of the difference in their atomic masses or in the same slot because their chemical properties are same. Justify your answer.
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Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
According to Mendeleev's periodic law, the elements were arranged in the periodic table in the order of:
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Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
In Mendeleev's periodic table the elements were arranged in the increasing order of their atomic masses. However, cobalt with atomic mass of 58.93 amu was placed before nickel having an atomic mass of 58.71 amu. Give reasons for the same.
MEDIUM
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Compare and contrast the arrangement of elements in Mendeleev's Periodic Table and the Modern Periodic Table.
HARD
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
How did Mendeleev predict the properties of eka-aluminium with the actual element gallium?
MEDIUM
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
State two main properties of elements on which Mendeleev's periodic classification was based. Why could no fixed position be assigned to hydrogen in his periodic table.
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Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Why Mendeleev left some gaps in his periodic table?
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Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Name the elements for which Mendeleev had left gaps in his periodic table.