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प्रश्न
Give the chemical formula of ammonium sulphate
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उत्तर
It denotes in a compound, the number of atoms of element present.
∴ Formula = \[\ce{(NH4)2SO4}\]
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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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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?
Answer the following in respect of element `31/15 P `
To which group and period does it belong?
The electronic configuration of an element T is 2, 8, 8, 1.
What is the period number of T?
An element E has following electronic configuration:
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K |
L |
M |
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2 |
8 |
6 |
(a) To which group of the periodic table does element E belong?
(b) To which period of the periodic table does element E belong?
(c) State the number of valence electrons present in element E.
(d) State the valency of the element E.
Right or wrong sentence.
To the left of the zig-zag line in the periodic table are the metal elements.
The element which has the least tendency to lose electrons is ______
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.
It has same valency as Lithium.
______ group elements are called alkaline earth metals.
Spot the error:
The elements of group 13 are called the carbon family.
