Rubidium.
Rb is the symbol for the element, rubidium.
Each atom of Rubidium (Rb) has 37 protons.
Typically, the initials "RB" on a gold chain do not have a universal or specific meaning. It could be the initials of a person's name, a brand logo, or simply a decorative design element. The interpretation would depend on the context in which the initials are being used.
Right Bumper
Rb (Rubidium) is the largest element among Li, Na, Rb, and K as you move down the same group or in the same period from left to right on the periodic table.
The element rubidium (Rb) as a single atom has thirty-seven protons.
the atomic number of any element is the number of protons in its nucleus, so in this case, 31, Gallium
Rb (rubidium) is the largest element among K (potassium), Rb (rubidium), Na (sodium), and Li (lithium). This is because as you move down a group in the periodic table, the atomic size increases due to the addition of more electron shells.
Um - that would be Ray Ban!
If you look at a periodic table and go to group one, and than the element with an atomic number of 37 it is Rb. The atomic number is the number of protons and electrons. Rb is Rubidium.
Rubidium is a metal element. Atomic mass of it is 85.
Rubidium (Rb) is an alkali metal.