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प्रश्न
______ is the longest period in the periodical table.
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उत्तर
The sixth period is the longest period in the periodical table.
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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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−
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−
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−
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A
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−
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−
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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 number of valence electrons in the atoms of first elements in a period?
In the modern Periodic Table, why does cobalt with higher atomic mass of 58.93 appear before nickel having lower atomic mass of 58.71?
Name two elements in Inert gas.
Give the symbol and valency of the following element and radical.
Ammonium
Give the chemical formula of carbonic acid
Give the chemical formula of calcium phosphate
Name the following:
The group of the Modern Periodic Table to which calcium [Ca2+] belongs.
Element ‘X’ forms a chloride with the formula XCl2, which is solid with a high melting point. X would most likely be in the same group of the periodic table as: ______
An element has 2 electrons in its N shell.
State its position in periodic table.
