搜尋結果
- 鈉
- ㄋㄚˋ
- 釋義：
- [名] （sodium，Na）化學元素。原子序11。鹼金屬元素之一。銀白色，質軟具延展性。在空氣中極易氧化，遇水則劇烈反應產生氫氣，需貯存於石油中。主要以化合物型態存在，如食鹽。亦可做還原劑及熱交換劑，用途甚廣。
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Yahoo Mail is one of the most popular and reliable email services in the world. You can sign in or out of your account from any device, access a variety of Yahoo services, and enjoy features like ...
2024年5月7日 · This year's theme is " Sleeping Beauties: Reawakening Fashion ," reflecting the institute's new exhibition name, and the event dress code is " The Garden of Time ." You can count on a bouquet of ...
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- Laura Clark
2024年4月12日 · In the U.S., the sun will be fully obscured for a few minutes in 15 states from Texas to Maine, but the eclipse will be at least partially visible — weather permitting — in 49 states.
