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In Eka-aluminium, what does Eka signifies?

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Important Questions on The Periodic Table

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.

 

EASY
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
Elements in Mendeleev’s periodic table have been arranged according to: 
 
MEDIUM
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.

EASY
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
14 elements after actinium is called
MEDIUM
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
The number of Groups in Mendeleev's Periodic table was:
EASY
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
According to Mendeleev's periodic law, properties of elements are periodic function of their _____
EASY
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Mendeleev classified the elements on the basis of:
MEDIUM
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
An element that is an essential constituent of all organic compounds belongs to
EASY
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Why did Mendeleev leave some gaps in his periodic table?
EASY
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Give one drawback of Mendeleev periodic table.
EASY
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Mendeleev left one gap under B and Al, for an element, which was discovered later on. This element was:
MEDIUM
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Mendeleev based his periodic table on the:
EASY
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Periodic table on the basis of atomic mass was prepared by:
HARD
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
In Mendeleev's periodic table, gap was not left for one of the following elements. This element is:
HARD
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
An element X forms an oxide X2O3. In which group of Mendeleev's periodic table is this element placed?
MEDIUM
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:
EASY
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Which of the following is not a noble gases?
EASY
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
Eka-aluminium predicted by Mendeleev is also known as _____?
HARD
Science>Chemistry>The Periodic Table>Mendeleev's Periodic Table
The correct formula of the oxide of Eka-aluminium element predicted by Mendeleev was: