Mendeleev.com
Understanding the element
Uranium (U) is chemical element 92. It belongs to the actinoids, and its reference state at room temperature is a solid. Those basic facts are a useful starting point for its chemistry and applications.
Where do we encounter it?
In practice, it turns up most often in nuclear energy, glass color and scientific research.
nuclear energyglass colorscientific research
Standard atomic weight238.02891(3)
What its position in the table tells us
Uranium sits in period 7 and the F block. That location is useful because neighbouring elements often share trends in valence electrons, oxidation states and bonding behaviour.
Worth remembering
Uranium is radioactive, so its chemistry cannot be separated from nuclear physics and radiation safety
Uranium is radioactive, so its chemistry cannot be separated from nuclear physics and radiation safety