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प्रश्न
Fill in the blank:
Symbol represents _____ atom(s) of an element.
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उत्तर
Symbol represents gram atom(s) of an element.
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संबंधित प्रश्न
The symbols of the elements cobalt, aluminium, helium and sodium respectively written by a student are as
follows. Which symbol is the correct one ?
Write the full form of IUPAC. Name the elements represented by the following symbols:
Au, Pb, Sn, Hg
Give two examples of the following:
Solid + Liquid mixture
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
Combining power or capacity A : 3; B : 2; C : 1. (negative valencies)
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
Ca2+ NO31-
Give the symbol of the following element:
Phosphorus
Write the radical of the following valency:
Sodium
Write the radical of the following valency:
Bromine [Bromide]
Write the radical of the following valency:
Potassium
How many elements are known at present?
