Because plutonium is very toxic, radioactive, flammable and explosive.
1: chlorine (a poisonous gas) 2:calcium 3:sodium 4:pottassium
i think it's plutonium
element
Plutonium, Iron
Plutonium, most likely, a man-made element, but mined Uranium will also do.
plutonium
It is difficult to say decidedly yes to this question; but plutonium remain one of the most dangerous materials.
An answer is impossible without a definition of a "powerful element"; and this syntagma is not adequate for a chemical element. But it is true that plutonium is very dangerous (radioactive and toxic) and expensive.
1: chlorine (a poisonous gas) 2:calcium 3:sodium 4:pottassium
Those would be the transuranic elements, such as Plutonium, which are toxic to all life on Earth due to radioactivity and can last as such for thousands of years. The most important isotope of Plutonium is Pu-239 with a half life of 24,100 years.
i think it's plutonium
Plutonium is very expensive but tritium, carbon as diamond and californium-252 are more expensive.
Plutonium is an element on the Periodic Table of Elements. Plutonium (pronounced /pluːˈtoʊniəm/) is a rare radioactive, metallic and toxic chemical element. It has the symbol Pu and the atomic number 94. It is a fissile element used in most modern nuclear weapons. The most significant isotope of plutonium is 239Pu, with a half-life of 24,100 years. It can be made from natural uranium. The most stable isotope is 244Pu, with a half-life of about 80 million years, long enough to be found in extremely small quantities in nature, making 244Pu the nucleon-richest atom that naturally occurs in the Earth's crust, albeit in small traces.[1]
element
Plutonium was used in the Trinity test, Uranium in the first combat weapon.
You probably are thinking of plutonium
Plutonium is an artificial chemical element (but also exist in the earth crust in extremely low concentrations), metal, solid, radioactive, unstable, reactive, etc. The half life of the most important isotope (239Pu) is 2,41.104 years.