| Ion | Radius (pm) | Atomic Number |
|---|---|---|
| N 3− | 146 | 7 |
| O 2− | 140 | 8 |
| F − | 133 | 9 |
| Na + | 98 | 11 |
Which is bigger Li or Li+?
A cation has less electron than the neutral form of the element. Remember that the atomic radius is dependent upon the number of electrons (i.e. high number of electrons means larger radius). Li+ has 1 electron less than Li. Therefore, Li+ is smaller than Li.
Which ion has the largest ionic radius?
Explanation: The ionic radii of cations follow the same trends as atomic radii. They increase from top to bottom and from right to left in the Periodic Table. Thus, the ion with the largest radius is closest to the lower left corner of the Periodic Table, and that is the K+ ion.
Is Br or Br bigger?
Br – will have the largest atomic size because Br- has one extra electron in its valence shell which due to its unbalanced negative charge will be repelled and hence the atomic radius of Br- will increase.
Is Cl or K+ bigger?
In other words, K+ has bigger effective nuclear charge than Cl− , which translates to a bigger net positive charge felt by the outermost electrons. This will compress the energy levels a bit and make the ionic radius smaller for the potassium cation. Therefore, the chloride anion will have the larger atomic radius.
Why is K bigger than Br?
Since potassium is located at the start of period 3, and bromine at the end of the same period, potassium will have a larger atomic radius than bromine, and thus the largest atomic radius of the four given atoms.
Which ion has the largest radius se2 F O2 Rb+?
Answer. Answer: The answer is “Rubidium Rb+”.
Which ion is the smallest?
More the nuclear charge on ion, electrons are more strongly attracted and thus size decreases. Hence, among the given ions Al3+ is the smallest ion. An ion is a charged atom or molecule.
Which is larger RB or RB+?
We know that Rb+ is smaller than Rb because it loses an electron and has one less shell. Another reasoning is that since Rb+ has the same number of protons but less electrons, the electrons are held more tightly in Rb+. … Now between F and F-: F- has one more electron, which causes the radius to be bigger.
Which one has the largest size br i i cl?
Why iodine has a largest size among ,Br,I,I-,Cl.
Which has the largest radius?
Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.
Is Cl or I bigger?
For Cl to become Cl- ion, it must accept an electron. … This is because the nucleus still has 17 protons but the number of electrons in the ion now is 18 unlike the 17 in a neutral atom. Also, inter-electronic repulsion increases. Hence, overall size of the ion is more.
Which is smaller Mg2+ or Al3+?
As you go from Na+ to Mg2+ to Al3+, the number of protons in the nucleus increases and so pulls the outer electrons in more and more. … The smallest ion will be the one with the largest number of protons – Al3+; the biggest, the one with the least protons – N3-.
Is CL smaller than AR?
Cl- has the same number of electrons as Ar, but it has less protons, so less of a positive charge pulling those electrons to the nucleus, so will has a larger radius.