Rubidium has an atomic radius of 248 picometers.
Potassium's atomic radius is smaller than rubidium's because potassium has fewer energy levels of electrons.
Neon has the smallest atomic radius.
Rubidium's atomic radius is greater than xenon's because the trend for atomic radius is that it decreases left to right across a period (even though atomic number increases, and generally speaking, atomic mass does as well.) This is a result of the attraction between the protons in the nucleus and the valence electrons, which are all in the same energy level for isoperiodic elements.
mg, ca,k ,rb magnesium, calcium, potassium, rubidium as you do down a group atomic radius increases as you go across a period atomic radius decreases
Ca, Mg, Be, Fr, Cs, Rb, K, Na, Li, H
Several alkali metals (K, Rb, Cs) have a big atomic radius.
85.4678 is the atomic weight of Rb.
Rb is larger with a radius of 248 pm while Xe has one of 130 pm. It follows the trend that radii decrease as you move right across the periodic table.
Both are ions and we should consider the ionic radius, not the atomic radius. Rubidium ion (Rb+) will have a larger IONIC radius than strontium ion (Sr2+). Both ions have the same electronic configuration. But strontium ion has more number of protons in the nucleus. Hence it will have greater force of attraction between the nucleus and the valence electrons, resulting in smaller size.
Rb is the largest, Li the smallest in the row above. Group 1 of the periodic table: Fr > Cs > Rb > K > Na > Li > H
o,c,mg,rb,cs or ar,p,al,na,k -barbie=] H (smallest) S Si Na Rb (largest)
The chemical symbol of rubidium is Rb Rb-- atomic # 37, atomic weight 85.87
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.
The atoms with the largest atomic radii are found in the lower right side of the periodic table. Smallest atoms are found in the higher left part of the periodic table. He has the smallest atomic radii.
Rubidium is a metal element. Atomic mass of it is 85.
The atomic number of rubidium (Rb) is 37.The atomic weight of Rb is 85.4678(3) grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
The atomic bomb was dropped on Hiroshima and Nagasaki RB
In terms of atomic radius, the sequence would be oxygen, carbon (both period 2), magnesium (period 3), rubidium (period 4), and cesium (period 5). Note that order by periods is not absolute: in each period, the elements toward the far left side have the largest radii. For example, the radius for lithium in period 2 is larger than almost all of the elements in periods 3 and 4. *Numerically, the elements O, C, Mg, Rb, and Cs have respective radii of about 60, 70, 150, 235, and 260 picometers.
Covalent radii in picometres are: rubidium (235), potassium (220), calcium (180), magnesium (150), beryllium (105).