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प्रश्न
Justify the given statement with suitable examples— “the Properties of the elements are a periodic function of their atomic numbers”.
उत्तर
The chemical properties and physical properties of the elements depends upon its outer electron configuration which ultimately is the periodic function of the atomic number. The elements which possess the same outer electron configuration belong to the same group or family showing similar properties.
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संबंधित प्रश्न
Use the periodic table to answer the following question.
Identify an element that would tend to lose two electrons.
Use the periodic table to answer the following question.
Identify an element that would tend to gain two electrons.
Use the periodic table to answer the following question.
Identify the group having metal, non-metal, liquid as well as gas at room temperature.
Assign the position of the element having an outer electronic configuration in the periodic table.
(n - 2) f7 (n - 1)d1 ns2 for n = 6
Write the outer electronic configuration of the following using the orbital notation method. Justify.
Ge (belongs to period 4 and group 14)
Write the outer electronic configuration of the following using the orbital notation method. Justify.
Po (belongs to period 6 and group 16)
Consider the oxides Li2O, CO2, B2O3.
Which oxide would you expect to be the most basic?
How would you explain the fact that first ionisation enthalpy of sodium is lower than that of magnesium but its second ionisation enthalpy is higher than that of magnesium?
Write down the outermost electronic configuration of alkali metals. How will you justify their placement in group 1 of the periodic table?
\[\ce{_92U^235}\] is a member of VI B group. The new element formed by the emission of α-particle will be a member of ______ group.
