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प्रश्न
State the term.
The number of atoms present in a molecule of an element _________
उत्तर
The number of atoms present in a molecule of an element atomicity.
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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:
CaCl2
Give the name of the element present in the following compound:
Quick lime
Give the name of the element present in the following compound:
Hydrogen bromide
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: Atomic number
Define: Atomic weight :
Write the formulae of the following compounds. Also name the elements present in them.
- Water
- Ammonia
- Methane
- Sulphur dioxide
- Ethanol
In what form does oxygen gas occur in nature ?
Work out the formula for magnesium hydrogencarbonate.
The cation of an element has :
An element X forms the following compounds with hydrogen, carbon and oxygen :
H2X, CX2, XO2, XO3
State the three valencies of element X which are illustrated by these compounds.
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 triatomic molecule
Give one example of a polyatomic molecule.
State the atomicity of the following:
Neon
Which of the following is a short and scientific way of representing one molecule of an element or compound?
Classify the following molecules as the molecules of element or compound
| 1. |  |
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| 2. |  |
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| 3. |  |
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| 4. |  |
Which of the following is a triatomic molecule?
If a molecule is made of similar kinds of atoms, then it is called ______ atomic molecule.
Two elements sometimes can form more than one compound.
Define: Atomicity.
Derive the relationship between Relative molecular mass and Vapour density.
Which of the following contains maximum number of molecules?
