Los colores de llama y la espectroscopía

The video tutorial discusses the evolution of element identification methods, starting with flame color analysis and advancing to the use of a spectroscope. Gustav Karchoff and Vansen's work led to the discovery of cesium and rubidium. The tutorial also covers the discovery of helium during a solar eclipse by Pierre Jansen and Norman Locker, highlighting the role of spectroscopy in these scientific advancements.

What was the initial method used to identify elements before the introduction of the prism?

• Using a microscope

• Using a telescope

• Using a glass prism

• Using a transparent flame

Which two elements were discovered by Karchov and Vansen using spectroscopy?

• Oxygen and Hydrogen

• Iron and Nickel

• Cesium and Rubidium

• Helium and Neon

What does the name 'cesium' refer to in Latin?

• Golden yellow

• Ruby red

• Deep green

• Sky blue

During which event was helium first detected?

• A meteor shower

• A total solar eclipse

• A comet passing

• A lunar eclipse

Who was the French astronomer that studied the solar spectrum during the eclipse?

• Gustav Karchoff

• Pierre Jansen

• Norman Locker

• Vansen