bromine

IPA/ˈbrəʊmiːn/
KK[brˈomˌin]IPA/ˈbrəʊmiːn/

bromine — noun

1. Bromine is a chemical element with a dark red colour and a sharp, powerful smell

1.名詞C1
釋義

Bromine is a chemical element with a dark red colour and a sharp, powerful smell. It is poisonous, occurs naturally in seawater, and belongs to the halogen family. Manufacturers use it in photography, flame retardants, and certain medicines.

例句

Mira's chemistry teacher showed the class bromine and said never to touch it.

uncountable noun without article: 'showed the class bromine'

Bromine is found in seawater, but companies must extract it through a chemical process.

passive: is found in [location]

文法句型

bromine is [property]

bromine is found in [location]

用法筆記

Bromine is an uncountable noun when referring to the substance. Use 'the bromine' when specifying a particular quantity or sample ('the bromine in that flask'), but no article when speaking about the element in general ('Bromine is toxic').

常見錯誤

❌We need two bromines for the reaction.
✅We need two bottles of bromine for the reaction.
💡Bromine is uncountable; you cannot count it as 'bromines'.
❌Bromine is a gas at room temperature.
✅Bromine is a liquid at room temperature.
💡Unlike chlorine or fluorine, bromine is a liquid, not a gas, at standard conditions.