radium
(noun)
/ˈreɪdiəm/
Giải nghĩa:
A shiny chemical element with the symbol Ra that is radioactive and gives off heat and light.
A shiny chemical element with the symbol Ra that is radioactive and gives off heat and light.
Ví dụ:
Marie Curie won a Nobel Prize for her research on radium.
Marie Curie won a Nobel Prize for her research on radium.
Cách sử dụng
Radium is a chemical element that is very rare and can cause harm if it is not handled properly. Radium is sometimes used in medical treatments, and it was also used in the past to make glow-in-the-dark paint. It is important to be careful when handling radium because it can give off harmful radiation.
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