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प्रश्न
Answer the following question:
Give the advantages of using symbols instead of names of elements or compounds.
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उत्तर
1. Symbols increase scientific communication across the world.
2. Symbols help to make equations and data shorter and concise.
3. Symbols are helpful for Scientists as it would take time and paper to do their job.
They had to write out the full name of every element instead of its symbol
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संबंधित प्रश्न
Give one example for the following types of mixtures :
misicible liquids
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Marble
Give two examples of the following.
Metals which are soft
Give one use of the following substance:
Coal
Tick (√) the correct alternative from the choice given for the following statement.
Gold is used to make jewellery because
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – two coloured gases (with their colours)
Select the correct answer from A, B, C, D & E for the statement given below :
A metalloid.
Higher Order Thinking Skills.
In the diagram given below, the circle, square and triangle represent the atoms of different elements.
Identify all combinations that represent
- molecule of a compound
- molecule of an element consisting of two atoms
- molecule of an element consisting of three atoms
______ is a mixture of gases.
Give an account of elements known to us.
