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प्रश्न
Define the term: Element
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उत्तर
Element is a substance which cannot be split up into two or more simple substances by usual chemical methods of applying heat, light or electric energy; for example, hydrogen, oxygen and chlorine.
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संबंधित प्रश्न
Give one example for the following types of mixtures :
solid-liquid heterogenous mixture.
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
Give Two Examples for Each of the Following: Metalloids
Name: a Liquid Metal
Give two examples of non-metals.
Give two examples of Metalloids.
Find the atomicity of the Following molecule:
Dinitrogen Oxide
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name - a poisonous gas almost as heavy as air.
Complete the statement with the correct words.
Acid’s are chemicals which are _____ in taste and derived from plants and ________.
Complete the statement given below by filling in the blank with the correct word.
From the elements nitrogen, chlorine, bromine, the element present in the atmosphere is ________.
Write the names of elements from the following symbol:
Ti
Write the names of elements from the following symbol:
Cu
Explain the term ‘mixture’.
Differentiate between homogenous & heterogeneous mixtures.
Select the correct answer from A, B, C, D & E for the statement given below :
A non-metal that is lustrous.
Give a reason for the following statement :
Brass & bronze are examples of mixtures, while copper sulphate & lead nitrate are examples of compounds.
The first letter of an element is always written in ______ letter.
Give an example for the elements derived from their Latin names.
Higher Order Thinking Skills.
List out the metals, non-metals and metalloids which you use in your house, schools. Compare their properties.
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
