It's difficult to answer this question specifically due to ever changing prices and the difficulty in getting information on certain elements. By far however the transuranic elements are the most expensive because of production and permit costs. Plutonium can cost around $4,000/gram and Californium can cost $10/mg or $10,000/gram.
Yes. All pencils use lead - not the element, but a graphite and clay mixture molded into a long narrow strip.
For years the name Lennox came up as the most reliable heat pumps and furnaces. The truth nowadays is it is much more important how it is installed and sized than what who makes it. The parts in these heat pumps are very similar- same compressor(most use a Copeland scroll compressor), same gauge copper, similar coils, same brand fan and blowers, etc. The most expensive heat pump will fail soon if not installed properly.
Ego
Mechanical toys work by using a variety of electronic based on their intended function. Most use batteries though some now use solar power.
Most excavators now use hydraulic controls for almost everything except possibly forward and reverse track motion
First of all Diamond Isn't even an element, Platinum is the most expensive element of all.
the most expensive element is a synthetic element which is Californium. It costs approximately 2.7 billion dollars per 100g. The one which isn't synthetic and the most expensive is lutetium and it costs $10000 per 100g.
Probable the atom of the element ununoctium.
Plutonium is one of the most valuable elements due to its use in nuclear weapons and reactors. However, the value of an element can vary depending on its rarity, demand, and applications in various industries.
Platiaum is the most expensive metal they use to make jewlery.
Platinum is the transition element that is most commonly used in expensive jewelry due to its lustrous appearance, durability, and resistance to tarnishing.
No. Potassium metal is to reactive and expensive for everyday use.
Astatine. the entire planet contains only about 17 atoms of it
Most metals.
The International Space Station (ISS), at an estimated cost of between $35 billion to $160 billion. Darmstadtium, is an element. I'm not sure if it's the most expensive but the element only lasts a few milliseconds, making it hard to obtain and extremely valuable.
The dearest element is likely astatine due to its rarity and high production cost, making it one of the most expensive elements to produce and acquire.
Gold is the most commonly used element in making expensive jewelry due to its rarity, durability, and timeless appeal. It is prized for its luster and aesthetic qualities, making it a popular choice for luxury items.