Advertisements
Advertisements
Question
For writing a chemical formula – ‘symbols’ and combining capacity of an element with hydrogen i.e. ‘valency’ should be known. Explain the term – combining the capacity of an element i.e. valency.
Advertisements
Solution
The combining power of an element especially as measured by the number of hydrogen atoms can combine or displace with the element.
RELATED QUESTIONS
Define: Elements-
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 radical of the following valency:
Aluminium
Write the chemical formula of the following:
Sodium bromide
Write the chemical formula of the following:
calcium carbonate
Give the formula of the following acid:
Carbonic
Give the formula of the following gas:
Hydrogen chloride
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Oxide
The symbol of tungsten is _______.
The first letter of a symbol is always written as a ______ letter and the second letter as a ______ letter.
