It means to multiply the radius by itself: radius x radius
When you try to figure out an area of a circle, you square the radius, then multiply it by pi to get the area of a circle. A radius square is radius x radius, or radius squared.
The diameter is twice the radius. So multiply the radius by 2
The length of a radius is not the length of a diameter. The diameter is two times the length of the radius.
Radius Radius
Separation of transition metals is difficult. They have similar size, occur together and difficult to separate.
NO
Rubidium; the next higher atomic numbered element in the same column of the periodic table always has a higher atomic radius, with some exceptions among transition elements due to the "lanthanide contraction". However, potassium and rubidium are not transition elements.
Strontium: At least within periodic table columns that do not include transition metals, an element with higher atomic number always has a larger atomic radius. This principle is generally correct also for columns that do include transition metals, but in an important exception, hafnium has almost the same atomic radius as zirconium, making the separation of these two metals very difficult by chemical means.
this is because the effect of the increased nucleus i roughly balanced by the greater screening effect produced by adding to the penultimate shell
Transition metal
history of transition graph
zone transition pointszone transition points
Gerald Turley has written: 'Transition, Taxation And the State (Transition and Development) (Transition and Development) (Transition and Development)'
Transition
Transition
The two transition zones of the Russian realm are the Russian Transition Zone and the Trans-Caucasian transition zone