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प्रश्न
The element having atomicity 'four' is most likely to be :
पर्याय
argon
fluorine
phosphorus
francium
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उत्तर
Phosphorus
Phosphorus has an atomicity of 4.
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संबंधित प्रश्न
Write the chemical formula of the Calcium carbonate.
Explain the difference between 2N and N2.
Write down the formulae for the following compounds :
Calcium oxide
Write the formula of the following compound:
Sodium carbonate
Write the formula of the following compound:
Sodium iodide
Write the formula of the following compound:
Magnesium nitrate
Write the formula of the following compound:
Aluminium carbonate
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
BaCl2
Give the chemical formulae for the following compounds and compute the ratio by mass of the combining elements in each one of them. (You may use appendix-III).
- Ammonia
- Carbon monoxide
- (Hydrogen chloride
- Aluminium fluoride
- Magnesium sulphide
Play a game for writing formula.
Example 2: A low-cost model for writing formulae: Take empty blister packs of medicines. Cut them in groups according to the valency of the element, as shown in the figure. Now, you can make formulae by fixing one type of ion into other.
For example:
The formula for sodium sulphate:
2 sodium ions can be fixed on one sulphate ion.
Hence, the formula will be Na2SO4.
Do it yourself:
Now, write the formula of sodium phosphate.
