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Anonymous Posted 20 years ago
Grammar

Phosphorus or Phosphorous

Hi

Greetings! Please advise me regarding the usage of 'phosphorus' and 'phosphorous'. I believe phosphorus is the correct form to use. Am I correct?

Many thanks for your help in this regard

Elango P.P.
  

Top answer

Hi, Phosphorus is the noun. Phosphorous is an adjective.

— Nona the brit

  • Hi, Phosphorus is the noun.
  • Phosphorous is an adjective.
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2 Answers
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Hi,

Phosphorus is the noun. Phosphorous is an adjective.
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Nona is right. 'Phosphorus' is the name given to an element P. 'Phosphorous' is an adjective to describe any compounds containing the phosphorus. For example, PCl3 is called 'phosphorous trichloride'.

paco
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