मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

State the Atomicity of the Following: Neo - Chemistry

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प्रश्न

State the atomicity of the following:

Neon

एक शब्द/वाक्यांश उत्तर

उत्तर

Momoatomic

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पाठ 4: Atomic Structure - Exercise

संबंधित प्रश्‍न

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

Al2(SO4)3


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

CaCl2


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

Potassium sulphate


Define: Atomic number


 Define: Atomic number


Define: Mass number : 


What is meant by atomicity ? Explain with two examples.


What is the atomicity of the following ?

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

In what form do noble gases occur in nature?


What is the difference between the molecule of an element and the molecule of a compound ? Give one
example of each.


Work out the formula for magnesium hydrogencarbonate.


The cation of an element has :


An element A forms an oxide A2O5.

What is the valency of element A ?


Calculate the mass of 3.011 × 1024 atoms of carbon.


Correct the following statement:

A molecule of sulphur is monoatomic.


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.


Give one example of a polyatomic molecule.


Give a reason why –

Helium is considered monoatomic, but hydrogen a diatomic molecule.


State the atomicity of the following:

Chlorine


Classify the following molecules as the molecules of element or compound

1.  
2.  
3.  
4.  

Which of the following is a triatomic molecule?


The Atomicity of phosphorous is ______


Derive the relationship between Relative molecular mass and Vapour density.


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