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What is the formula for Rb and O?
Rb is rubidium, O is oxygen. They will combine to form Rb2O which is called rubidium oxide.
What does RB mean?
it means right back..
What does Rb mean in coin rating?
When grading copper cents, there are three main subgrades: BN (brown, a tarnished cent) RB (red-brown, a cent that has began to tarnish) and RD (red, an untarnished cent) out of all of these, collectors will sometimes pay a premium for RD or RB cents because they are much more attractive. However, keep in mind that most slabs aren't airtight and your RB or RD cent may very well eventually tarnish into a BN cent, so my advice is not to pay a premium for the colour designation but rather focus on the true grade of the coin (expressed in a number from 1 being barely recognizable to 70 being perfection)
What does 10 Rb mean inside gold ring?
The "10 Rb" marking inside a gold ring typically indicates the ring's gold content and alloy composition. "10" refers to the karat, meaning the ring is made of 10 karat gold, which contains 41.7% pure gold and 58.3% other metals. "Rb" could refer to a specific alloy or production mark, but it's less common and may require additional context or manufacturer information for precise identification. Always consult a jeweler for detailed insights regarding markings.
Two trains going in opposite directions leave at the same time Train B travels 10 mph faster than train A In 3 hours the trains are 390 mph apart Find the speed of each?
Train A is going 60 miles per hour Train B is going 70 miles per hour Let rA = x, then rB = x + 10, and t = 3, then trA + trB = 390 3x + 3(x + 10) = 390 3x + 3x + 30 = 390 6x = 360 x = 60 x + 10 = 60 + 10 = 70
What atomic radius is larger Rb or Sr?
The atomic radius of Sr (Strontium) is larger than that of Rb (Rubidium). This is because atomic radius generally increases down a group in the periodic table, and Sr is located below Rb in the same group.
Which has the smallest radius K Rb K Rb?
Rb+ has a smaller radius than K+ due to increased effective nuclear charge in rubidium. Therefore, K+ has a smaller radius than Rb.
What is the atomic radius of Rb?
The atomic radius of rubidium (Rb) is approximately 248 picometers. This is the distance from the nucleus to the outermost electron shell in a rubidium atom.
Which atom has larger atomic radius Rb or Xe?
Xe has a larger atomic radius than Rb because atomic radius generally increases from top to bottom within a group in the periodic table. Xe is located below Rb in the periodic table, so it has more electron shells, resulting in a larger atomic radius.
Which element has the largest radius Rb 37 or Xe 54?
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.
What species has the smallest atomic radius between Kor Mg orRb or Ca?
The species with the smallest atomic radius among K, Mg, Rb, and Ca is Rb (Rubidium). This is because atomic radius tends to decrease across a period from left to right in the periodic table, and Rb is located towards the right side of this group of elements.
What elements have a smaller atomic radius than strontium?
Ca, Mg, Be, Fr, Cs, Rb, K, Na, Li, H
What is the atomic weight of Rb?
85.4678 is the atomic weight of Rb.
Where is the lowest electronegativity barium calcium magnesium or strontium?
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.
What elements have an ionic radius equal to the atomic radius?
In ionic compounds, the cation typically has an ionic radius smaller than its atomic radius due to the loss of electrons, while the anion has an ionic radius larger than its atomic radius due to the gain of electrons. Therefore, in an ionic compound, the sum of the ionic radii of the cation and anion will generally equal the sum of the atomic radii of the two atoms.
Which element is the largest K Rb Na Li?
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.
Smallest to largest atomic radius PotassiumMagnesiumCalciumRubidium?
Rubidium has the largest atomic radius, followed by potassium, calcium, and then magnesium. This trend is due to an increase in the number of electron shells and shielding effects as you move down the periodic table from potassium to rubidium.
