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प्रश्न
How do the atomic radii of elements change as we go from left to right in a period of the periodic table?
उत्तर
As we go from left to right in a period of the periodic table, the atomic radii decrease.
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संबंधित प्रश्न
The position of three elements A, B and C in the Periodic Table are shown below –
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Group 16
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Group 17
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A
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B
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C
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(a) State whether A is a metal or non-metal.
(b) State whether C is more reactive or less reactive than A.
(c) Will C be larger or smaller in size than B?
(d) Which type of ion, cation or anion, will be formed by element A?
What is the fundamental difference in the electron configurations between the group 1 and group 2 elements?
What are the advantages of the periodic table?
Name the type of elements which have two outermost shell incomplete.
In the Modern Periodic Table – atoms of all elements are arranged according to their increasing order of – atomic numbers. An atom of nitrogen has seven protons and seven electrons. State what would be its atomic number.
Give the symbol and valency of the following element and radical.
Chlorine [Chloride]
Give the symbol and valency of the following element and radical.
Bisulphate
Give the chemical formula of sodium sulphite
Give the chemical formula of ammonium sulphate
How were elements arranged in the long form of the periodic table or the Modern Periodic Table?
