A highly reactive group of metals that make up group one in the periodic table.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

What are alkali metals? Why are they so reactive? What are the trends as you go down the group? How do they react with water, oxygen and chlorine? Learn all this and more!

Learn about the Periodic Table of elements and the group alkali metals with Alkali Metals Song Periodic Table by KLT

This nugget justifies the position of Hydrogen in the modern periodic table and discusses the occurrence of isotopes of Hydrogen.

How did scientists make sense of the characteristics of elements? What is the periodic table? How are elements classified? What are the major categories of elements? What are exceptions regarding the periodic table?

Periodic Table...

The shiny exposed metal surface reacts rapidly with oxygen and water in the air, forming a duller layer of sodium oxide and hydroxide. Then the sodium metal is dropped into water. The reaction produces hydrogen gas and sodium hydroxide....

The reaction produces hydrogen gas and sodium hydroxide. The heat of the reaction melts the sodium, which forms a sphere. The indicator phenolphthalein has been added to the water, which turns pink due to the presence of the strongly...

The reaction produces hydrogen gas and sodium hydroxide. The heat of the reaction melts the sodium, which forms a sphere. The indicator phenolphthalein has been added to the water, which turns pink due to the presence of the strongly...

Cutting potassium metal with a scalpel. The shiny exposed metal surface reacts rapidly with oxygen and water in the air, forming a duller layer of potassium oxide and hydroxide

Cutting potassium metal with a scalpel. The shiny exposed metal surface reacts rapidly with oxygen and water in the air, forming a duller layer of potassium oxide and hydroxide

The reaction produces hydrogen gas and potassium hydroxide. The heat of the reaction ignites the hydrogen gas produced, which burns with a lilac flame. The indicator phenolphthalein has been added to the water, which turns pink due to...

The reaction produces hydrogen gas and potassium hydroxide. The heat of the reaction ignites the hydrogen gas produced, which burns with a lilac flame. The indicator phenolphthalein has been added to the water, which turns pink due to...

The reaction produces hydrogen gas and potassium hydroxide. The heat of the reaction ignites the hydrogen gas produced, which burns with a lilac flame. The indicator phenolphthalein has been added to the water, which turns pink due to...

The reaction produces hydrogen gas and potassium hydroxide. The heat of the reaction ignites the hydrogen gas produced, which burns with a lilac flame. The indicator phenolphthalein has been added to the water, which turns pink due to...

The reaction produces hydrogen gas and potassium hydroxide. The heat of the reaction ignites the hydrogen gas produced, which burns with a lilac flame. The indicator phenolphthalein has been added to the water, which turns pink due to...