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Study with Quizlet and memorize flashcards containing terms like Atomic number, Atomic mass, Cesium was discovered by Robert W Bunsen and Gustav Kirchhoff in 1860 at Germany. and more.
Terms in this set (19) radioactive? Study with Quizlet and memorize flashcards containing terms like symbol, group, period and more.
Study with Quizlet and memorize flashcards containing terms like cesium, manganese, radon and more.
9 paź 2024 · cesium (Cs), chemical element of Group 1 (also called Group Ia) of the periodic table, the alkali metal group, and the first element to be discovered spectroscopically (1860), by German scientists Robert Bunsen and Gustav Kirchhoff, who named it for the unique blue lines of its spectrum (Latin caesius, “sky-blue”).
Cesium is an alkali metal that reacts explosively with water and melts just above room temperature. The word "cesium" is derived from caesium (Latin for "sky blue"). The name was chosen because of the blue lines observed by Robert Bunsen and Gustav Kirchhoff during their analysis of springwater with a spectroscope in 1860.
28 cze 2024 · Enhance your chemistry lessons with engaging examples and insights into Cesium’s world, making science more accessible and exciting. What is Cesium? Cesium, often symbolized as Cs, is a soft, silvery-gold alkali metal with atomic number 55. It’s known for its high reactivity and low melting point.
Cesium is called a getter because it gets gases out of the bulb. Cesium is also used in photoelectric cells, devices for changing sunlight into electrical energy. When sunlight shines on cesium, it excites or energizes the electrons in cesium atoms.
