Nickel is a chemical element with the symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile.

NICKEL – I

They are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). (Like the other elements in Group 1, hydrogen (H) has one electron in its outermost shell, but it is not classed as an alkali metal since it is not a metal but a gas at room temperature.)

The most abundant rare earth elements are cerium, yttrium, lanthanum and neodymium [2]. They have average crustal abundances that are similar to commonly used industrial metals such as chromium, nickel, zinc, molybdenum, tin, tungsten, and lead [1]. Again, they are rarely found in extractable concentrations.

francium

Iridium. Iridium is one of the rarest metals in the Earth’s crust, with annual production of just three tonnes.

Jadeite

At high purity levels, using the 2018 price for 99.98% pure cesium metal, it’s worth about $79 per gram–twice the price of a gram of gold, Most uses required 98% pure cesium, which was set at about $39 for 25 grams in 2018.

Cesium, not to be confused with cerium, a rare earth element, is used in atomic clocks, making the rare metal essential for 5G networks.

The price for a cesium-plasma standard solution (10,000 micrograms per milliliter) was $81.90 for 50 milliliters and $125.00 for 100 milliliters, and the price for 25 grams of cesium formate, 98% basis, was $39.90.

In terms of world dominance, the “cesium standard” is the key. This is the standard by which the accurate commercially available atomic clocks measure time, and it’s vital for the data transmission infrastructure of mobile networks, GPS and the internet.

Uses and properties Caesium is a soft, gold-coloured metal that is quickly attacked by air and reacts explosively in water. The most common use for caesium compounds is as a drilling fluid. They are also used to make special optical glass, as a catalyst promoter, in vacuum tubes and in radiation monitoring equipment.

Cesium is used to help drill oil and make vacuum tubes. The most common everyday use for cesium is with the GPS on your cell phone. Cesium clocks is the more accurate term for atomic clocks, since cesium is used in these clocks.