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Although they are all group I atoms, Na and K have a nuclear charge representative of s,p,and d electrons. Once you get to Rb the 4f sublevel comes into play along with the significantly increase nuclear charge. As a result, the does not increase as significantly as the Na and K.
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∙ 10y ago
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∙ 13y agoSodium have 11 electron, which are filled in its shell in order of 2,8,1 so in total three shells on the other hand potassim atomic no. is 19 and so have 19 electrons in its shell in order of 2,8,8,1 i.e. four shells so have bigger size and also more havier then sodium.
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∙ 14y agoLi has donated one electron to its ionic partner, so the radius, ionicly, is smaller.
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∙ 13y agoThe atomic radius of potassium is larger then the atomic radius of calcium because the nuclease of potassium is larger than calcium.
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∙ 12y agoK. Within a periodic column, lower elements always have higher radii than those above them. (The difference between zirconium and hafnium is exceptionally small.)
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What atom has the largest atomic radius calcium iodine potassium or cesium?
Potassium. It has two extra shells than lithium.
Which has the greatest atomic radius K or Ca?
Both atoms have the same van der Waal's radius (2.00) Radii that are not available in either of these publications have RvdW 2.00 A. However, Caesium has a greater covalent radius (1.67) as compared to that of Radon (1.50) See the link for more info.
Which is more massive calcium or selenium?
Calcium has a larger atomic radius. Calcium has an atomic radius of 2.23 Å, while bromine is only 1.12 Å.
Which element will have a larger atomic radius magnesium or cesium?
Caesium atom has a larger atomic radius.
When atoms gains electrons what happens to the atomic radius?
The negative ionic radius is larger than the neutral atomic radius
Is the atomic radius of potassium larger than of calcium?
Yes.
Which atom has the larger atomic radius K or Li?
K (potassium) has the larger atomic radius.
Which element has larger raduis between potassium and calcium?
Potassium has the larger radius (not raduis!).
Which of these elements has the largest atomic radius. Aluminum potassium fluorine. Calcium?
Potassium has the largest atomic radius. It is in the 1st group of the periodic table. Fluorine has the least atomic radius.
Which has the larger radius Na or Mg?
By the trend it is Na...(Bigger the farther left and bigger towords the bottom)
What atom has the largest atomic radius calcium iodine potassium or cesium?
Potassium. It has two extra shells than lithium.
What has a larger atomic radius Cl ion or Ca ion?
Calcium has the larger atomic radius than chlorine. Calcium has four energy levels, whereas chlorine has three energy levels. The higher the energy level, the farther it is from the atomic nucleus.
Which is bigger the atomic radius of potassium or atomic radius of iodine?
Atomic radius of Iodine is very large compared to potassium.
Smallest to largest atomic radius PotassiumMagnesiumCalciumRubidium?
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
Which has the greatest atomic radius K or Ca?
Both atoms have the same van der Waal's radius (2.00) Radii that are not available in either of these publications have RvdW 2.00 A. However, Caesium has a greater covalent radius (1.67) as compared to that of Radon (1.50) See the link for more info.
Given any two elements within a group is the element with the larger atomic number likely to have a larger or smaller atomic radius than the other element?
The atomic radius decreases across a period from left to right and increases down in a given group. That means that since the lower the element is in a group, the larger the atomic radius will be. The atoms with the largest atomic radii are located in Group I and are at the bottom of groups.
Which is more massive calcium or selenium?
Calcium has a larger atomic radius. Calcium has an atomic radius of 2.23 Å, while bromine is only 1.12 Å.
