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प्रश्न
Give two examples of the following:
Solid + Liquid mixture
उत्तर
Solid + Liquid mixture :
- Sand and water,
- Charcoal and water.
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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 ?
An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Copper by ‘Cu’
Give the symbol and the number of atoms of the following elements present in sodium chloride.
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)
Give the symbol of the following element:
Silicon
State the type of element for the following:
Antimony
State the type of element for the following:
Radon
Give the symbol of the following element:
Nitrate
Write the radical of the following valency:
Chlorine [Chloride]
Mass of one atom of oxygen is
