Answer. Answer: The answer is “Rubidium Rb+”.
Which ion has the largest radius?
1 Answer. Ernest Z. K+ has the largest radius.
Which has the largest radius O2 F or F?
From top to bottom of the periodic table ions will increase in radii. However, now left to right the radius is more of a function of the number of electrons. Mg2+ is smaller than Na+. … Similarly, O2- will be larger than F- as both have 10 electrons but Z=8 for oxygen and Z=9 for fluorine.
What is the radius of Se2?
Metallic, Covalent and Ionic Radii(r)*
| Atom/Ion | r(pm) |
|---|---|
| Se | (117) |
| Se2- | 198 |
| Si | (118) |
| Sn | 158(140) |
Which has the larger radius F or F −?
F has a larger radius than F− because an additional electron causes greater repulsion in F.
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 has the largest radius O or O 2?
O2− is larger than O because the increase in electron repulsions that accompany addition of an electron causes the electron cloud to expand. O2− is larger than O because O is neutral but O2− has a charge 2−. … S2− is larger than O2− because for particles with like charges, size increases going down a family.
Which is bigger Se2 or Br?
The Br− ion is smaller than the Se2− ion because the Br− ion has a larger nuclear charge and more extra electrons than the Se2− ion.
Is N3 bigger than F?
Solution: a) N3- and F- are isoelectronic anions, both w/ 10 e-. Because N3- has only 7 protons and F- has 9, smaller attraction exerted by the nucleus on the e- results in a larger N3- ion.
Which is larger in radius K+ or K?
These are electrons with “highest energy level”. When at neutral, the potassium ion in the form of K has an electronic configuration of: … The K+ ion has its outermost electrons on the third energy level now and is size is smaller than that of K ion. Hence, K is larger than K+.
Which is larger F or Li+?
In your case, lithium has an atomic number equal to 3 and fluorine an atomic number equal to 9 . So fluorine has more protons in its nucleus. … As a result, the atomic size of fluorine will be smaller than that of lithium, or, in other words, lithium will have larger atomic radius than fluorine.
What is the atomic radius of Rb+?
The atomic radius for Rb is 265pm and it is 88pm for Kr.
What is the ionic radius of Sc3+?
Atomic and Ionic Radii
| A | B |
|---|---|
| N, N3- | N3- |
| (Honors) S2-, Sc3+ | S2- |
| Cu2+, Cu+ | Cu+ |
| Te, S | Te |
Which is larger F 1 or F and why?
Cations have less electrons than anions. … F-1 is larger than F because F has a greater positive charge and electrons repel the nucleus.
Is Mg2+ smaller than F?
(8 points) Why is the Mg2+ ion smaller than F–, even though they are isoelectronic? Because while having the same number of electrons, Mg2+ has 12 protons and F– has only 9. Therefore, the electron attraction to the nucleus is greater in Mg2+ making it smaller.
Which is larger Na+ or Mg2+?
mg2+ would be the smaller ion this is because each ion has the same number of electrons however mg2+ has a greater number of protons and therefore is more charge dense and the outer electrons feel a greater pull from the nucleus. …