All the isotopes of uranium and plutonium are radioactive; plutonium isotopes have a greater specific activity.
For cerium: the isotopes 136Ce and 142Ce are possible to be radioactive but having very long half lives and a not significative radioactivity.
Two are named for major planets: uranium (Uranus) and neptunium (Neptune).The element mercury is named for the Roman god of speed, as was the planet; but the element was not directly named for the planet.Two are named for minor planets: cerium (Ceres) and plutonium (Pluto).If the asteroid Pallas is promoted to minor planet status, then palladium will join that list.but the most common element named after a planet is uranium(uranus).
There are eight elements named after the universal planets, which includes Pluto. These are Uranium, Neptunium, Plutonium, Cerium, Palladium, Tellurium, Selenium, and Mercury.
cerium is atomic number 58 element and is in lanthanoide family and is a transition metal
It was the other way round. Uranium was named after a planet. That planet was Uranus.
The nine elements named after objects in outer space are Mercury, Uranium, Neptunium, Plutonium, Cerium, Palladium, Tellurium, Selenium, and Titanum.
the pereodic table of elements.rare earth.other things in that section:lanthanium,cerium,praseodymium,neodium,promethium,samarium,europium,gadolinium,terbium,dysprosium,holmium,erbium,thulium,ytterbium,luttium,actinium,thorium,proacttinium,uranium,neptunium,plutonium,americium,curium,berkelium,californium,einsteinium,fermium,mendelevium,nobelium,lawrencium.
[Xe] 6s2 4f1 5d1.There are a total of 58 electrons. Or the atomic number is 58 and the element is Cerium
The metal curium is normally a solid at anything close to "normal" temperature. It melts at well in excess of 1000 °C. Curium is a synthetic trans-uranium element; it is not found in nature. A link can be found below.
Cerium is a metal element. Atomic mass of it is 140.
German
Yes, curium is a highly radioactive element that is considered dangerous when handled in large quantities or in close proximity to humans. It can pose health risks if not properly handled and controlled due to its ability to emit harmful radiation.
cerium is reactive, if hit with a sharp object it will combust and release nitrogen and hydrogenated carbon. it is the most stable of the rare earth elements though