Uran (benannt nach dem Planeten Uranus) ist ein chemisches Element mit dem Elementsymbol U und der Ordnungszahl 92. Im Periodensystem steht es in der Gruppe der Actinoide (7. …

Atomic number (Z): 92: Group: f-block groups (no number): Period: period 7: Block f-block Electron configuration [] 5f 3 6d 1 7sElectrons per shell: 2, 8, 18, 32, 21 ...

2025年3月28日 · Uranium, radioactive chemical element of the actinoid series of the periodic table, atomic number 92. It is an important nuclear fuel. It is a dense, hard metallic element …

2025年3月12日 · Uranus is the seventh planet from the Sun, and the third largest planet in our solar system. It appears to spin sideways.

Uranus is the seventh planet from the Sun.It is a gaseous cyan-coloured ice giant.Most of the planet is made of water, ammonia, and methane in a supercritical phase of matter, which …

2024年12月31日 · Uranus is a very cold and windy world. The ice giant is surrounded by 13 faint rings and 28 small moons. Uranus rotates at a nearly 90-degree angle from the

2015年3月1日 · Uranium was discovered in 1789 by Martin Klaproth, a German chemist, who isolated an oxide of uranium while analyzing pitchblende samples from the Joachimsthal silver …

Uranus is a planet beyond convention. Find out why it boasts the coldest temperatures in the solar system, what phenomena caused the unique tilt of its axis,...

2024年9月3日 · There are three natural isotopes of uranium — uranium-234 (U-234), uranium-235 (U-235) and uranium-238 (U-238). U-238 is the most common one, accounting for around …

4 天之前 · Uranus also has faint rings. The inner rings are narrow and dark. The outer rings are brightly colored and easier to see. Like Venus, Uranus rotates in the opposite direction as …