This article is a summary of a YouTube video "Cesium - The most ACTIVE metal on EARTH!" by Thoisoi2 - Chemical Experiments!

The Most Active Metal on Earth: Cesium

TLDRDiscover the unique properties of cesium, the most active and unusual metal on Earth. From its high reactivity to its low melting point, learn about the fascinating characteristics of this rare element.

Key insights

🔥Cesium is the most active metal on Earth, even more active than gold. Its high reactivity and low melting point contribute to its uniqueness and scientific applications.

💰Despite its high activity, cesium is more expensive than gold due to its limited sales market and rarity. The price can reach over €100 per gram.

💧Cesium reacts violently with water, creating explosions on contact. Its reactivity makes it important in the field of orbital satellites and atomic clocks.

🔬Cesium has been used in photocells and motion sensors, but its usage has decreased with the rise of cheap transistor analogies in the electronics industry.

🌍Cesium's unique properties make it a subject of scientific experimentation and research. Understand the potential benefits and risks associated with this extraordinary metal.


Why is cesium the most active metal?

Cesium is the most active metal because of its position in the periodic table and its electron configuration. Its outer electron is more easily removed compared to other alkali metals.

What are the scientific applications of cesium?

Cesium is used in atomic clocks, where its accuracy is unmatched. It is also used in engines for orbital satellites due to its high reactivity and reliability.

Why is cesium more expensive than gold?

Cesium is more expensive than gold due to its limited sales market and rarity. The production and purification of cesium are complex processes, contributing to its high price.

Is cesium dangerous?

Cesium is a highly reactive metal and can be dangerous if mishandled. It reacts violently with water and can cause explosions. Proper safety measures should be followed when working with cesium.

Can cesium be used in everyday electronics?

Cesium's usage in everyday electronics has decreased with the availability of cheap transistor analogies. However, it still has potential applications in specialized fields and scientific research.

Timestamped Summary

00:07Cesium is the most active and unusual metal on Earth.

00:33Metallic cesium is stored in special ampules due to its high activity.

00:43Cesium has a yellowish tint and a higher price than gold.

01:07Cesium has a low melting point of 29℃ and quickly melts in the hand.

02:18Cesium reacts violently with air and water, causing ignition and explosions.

03:18Cesium can be easily cut due to its softness, resembling margarine.

04:09Cesium reacts with various substances, creating different reactions.

05:52Cesium explodes on contact with water and has a variety of applications in atomic clocks and orbital satellites.