4th Period: Potassium and Calcium—Electrons go into the fourth energy level. A small piece of sodium metal is placed in water. The sodium reacts with the water and gets very hot, producing sodium ...

A small piece of sodium metal is placed in a flask of chlorine gas. A little water helps expose the sodium so it can react with the chlorine gas. The reaction releases a lot of heat as the ionic ...

Sodium oxide can be reacted with water to produce a sodium hydroxide solution. The pH of this solution would be 14, which shows it is an alkali. A non-metal. Non-metals produce oxides which are ...

The apparatus below is used to react calcium with water and collect the gas. This would not be used with sodium or potassium as they float and the reaction is too vigorous.

When a small piece of sodium is placed in a petri dish with water and phenolphthalein, the sodium becomes a molten ball and darts around the dish, leaving a pink trail. The reactions of potassium, ...

He also gave the reaction a jump-start with a small amount of sodium metal, which can be produced by the lower-yielding but far more spectacular thermochemical dioxane method; lithium harvested ...

Their sodium-air battery cell has demonstrated high efficiency, incresed energy density, and a broad voltage range. Metal-air batteries, utilizing lithium or sodium, have been of great interest ...

The transformation is only made possible by bringing pure water into contact with electron-sharing alkali metals. In this instance, the researchers used a combination alloy made of sodium and ...