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प्रश्न
What property forms the basis of identification?
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उत्तर
Electronegativity
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संबंधित प्रश्न
An element X combines with oxygen to form an oxide XO. This oxide is electrically conducting.
(a) How many electrons would be there in the outermost shell of the element X?
(b) To which group of the periodic tables does the element X belong?
(c) Write the formula of the compound formed when X reacts with chlorine.
Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in ______.
In which block of the modern periodic table are the nonmetals found?
What is the need for classification of elements?
Give a reason why elements need to be properly classified.
State whether true or false. If false, correct the statement.
Metals can gain electrons.
The number of periods and groups in the periodic table are ______
Moseley’s periodic table is based on atomic mass.
Name the neutral atom in the Periodic Table which has the same number of electrons as K+ and Cl-.
How are elements grouped into various families in the periodic table?
