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प्रश्न
What property do all elements in the same column of the Periodic Table as fluorine have in common?
उत्तर १
Valency equal to 1.
उत्तर २
All elements in the same group of the periodic table as fluorine are halogens. Halogens are placed in group 17 which have seven valence electrons. Hence, their valency is 1.
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संबंधित प्रश्न
What was the Mendeleev's basis for the classification of elements?
Name two elements whose properties were predicted on the basis fo their positions in Mendeleev's periodic table.
Which group of elements could be placed in Mendeleev's periodic table later on, without disturbing the order? Give reason.
What name were given by Mendeleev to the then undiscovered element scandium.
Why did Mendeleev leave some gaps in his periodic table?
Which group of elements was missing from Mendeleev's original periodic table?
According to Mendeleev's periodic law, the elements were arranged in the periodic table in the order of: ______
The correct formula of the oxide of Eka-aluminium element predicted by Mendeleev was:
(a) EaO3
(b) Ea3O2
(c) Ea2O3
(d) EaO
Find the odd one out and give its explanation.
An atom has electronic configurations 2, 8, 7.
To which of the following elements would it be chemically similar? (Atomic numbers are given in parentheses.)
