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प्रश्न
The correct formula of the oxide of Eka-aluminium element predicted by Mendeleev was:
(a) EaO3
(b) Ea3O2
(c) Ea2O3
(d) EaO
उत्तर
Ea2 O3
The correct formula for the oxide of eka-aluminium, as predicted by Mendeleev, is Ea2O3.
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संबंधित प्रश्न
An atom has electronic configurations 2, 8, 7.
What is the atomic number of this element?
What was the Mendeleev's basis for the classification of elements?
In the classification of the them known elements, Mendeleev was guided by two factors. What are those two factors?
Describe two anomalies of Mendeleev's periodic classification of elements.
In Mendeleev's periodic table, why was there no mention of noble gases like helium, neon and argon?
Which group of elements was missing from Mendeleev's original periodic table?
State the merits of Mendeleev's classification of elements.
The elements from the zero group are called _______.
Eka boron : Scandium : : Eka Aluminum : _______
Find the odd one out and give its explanation.
