हिंदी
सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

State the Atomicity of the Following: Chlorine

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प्रश्न

State the atomicity of the following:

Chlorine

एक शब्द/वाक्यांश उत्तर
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उत्तर

Diatomic

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अध्याय 4: Atomic Structure - Exercise

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संबंधित प्रश्न

Write down the name of a compound represented by the following formula:

K2SO4


Write down the name of a compound represented by the following formula:

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Write down the name of a compound represented by the following formula:

CaCO3


Give the name of the element present in the following compound: 

Baking powder


Give the name of the element present in the following compound: 

Potassium sulphate


Calculate the number of molecules of sulphur (S8) present in 16 g of solid sulphur.


Define: Atomic number


Define: Mass number : 


What is the atomicity of the following ?

  1. Oxygen
  2. Ozone
  3. Neon
  4. Sulphur
  5. Phosphorus
  6. Sodium

Write the formulae of the following compounds. Also name the elements present in them.

  1. Water
  2. Ammonia
  3. Methane
  4. Sulphur dioxide
  5. Ethanol

In what form does oxygen gas occur in nature ?


In what form do noble gases occur in nature?


What do the following denote ?

  1. N
  2. 2N
  3. N2
  4. 2N2

What are (i) ionic compounds, and (ii) molecular compounds ? Give two examples of each type of compounds.


An element A forms an oxide A2O5.

What is the valency of element A ?


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State the three valencies of element X which are illustrated by these compounds.


Why are the symbols and formulae of substances important?


Explain the term – molecules. Give three examples of atoms of the same element forming a molecule. State the atomicity of the same.


State the main points of the contradiction of Dalton’s atomic theory by the Modern Atomic Theory.


State the atomicity of the following:

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State true of false. If false, give the correct statement.

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1.  
2.  
3.  
4.  

If a molecule is made of similar kinds of atoms, then it is called ______ atomic molecule.


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Derive the relationship between Relative molecular mass and Vapour density.


Which of the following contains maximum number of molecules?


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