Question 1: Compounds like acetate, carbonate, halides, oxide, nitrate, and sulfate are water-soluble, while double halides with ________, bismuth, cadmium, copper, iron, and lead are insoluble.
Question 5: It is a soft, silvery-gold ________ with a melting point of 28 °C (83 °F), which makes it one of only five metals that are liquid at or near room temperature.
Question 6: Caesium chloride is an important source of caesium ions in a variety of applications and it crystallizes in the simple ________, which is also called the "caesium chloride structure".
Question 7: The two German chemists ________ and Gustav Kirchhoff discovered it in 1860 by the newly developed method of flame spectroscopy.
Question 8: The vast majority of caesium compounds contain the element as the cation Cs, which + binds ionically to a wide variety of ________.
Question 9: [86 ] [87 ] Accumulation of caesium-137 in lakes has been a high concern after the [88 ] ________.
Question 10: It has been regarded as the "strongest base", but in reality, many compounds that are not classic hydroxide bases such as [10 ] and n-butyllithium ________ are stronger, and are destroyed by water.