Does K+ or Ca2+ have a smaller radius?
Does K+ or Ca2+ have a smaller radius?
Ca^2 + has smaller ionic radius than K^+ because it has more nuclear charge.
Is K+ or Ca2+ bigger?
(d) K+ is larger than Ca2+ Isoelectronic; Ca2+ has more protons to pull e- inward.
Which has a larger radius Na+ or Na?
In general, atomic radius is the distance between the centre of the nucleus and the outermost shell of electrons. In Na atom, the outermost shell is the ‘M’ (3rd shell)shell which has one electron. Now the atomic radius is less than that of Na atom. Hence Na+ is smaller than Na atom.
Why is Cl bigger than Na+?
So Cl- ion is larger than Cl atom. A Na+ ion has lost an electron, which would otherwise push away other electrons, so it is smaller than a Na atom. A Cl- ion has gained an electron, which pushes away other electrons, making it bigger than a Cl atom.
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-.
What is the ionic radius of Mg2+?
Metallic, Covalent and Ionic Radii(r)*
| Atom/Ion | r(pm) |
|---|---|
| Mg | 160 |
| Mg2+ | 72 |
| Mn | 137 |
| Mn2+ | 70 |
Which has a larger radius N or N3?
a) The atom has three more electrons than an atom of just N. These extra electrons cause the atomic radius to increase. Therefore, the smaller member of the pair is .
Which has largest ionic radius ca2+ Mg2+ ba2+?
Ba+2 has the largest size as it has the largest atomic number and hence maximum no. of shells among the given species. Was this answer helpful?
Which ions has the highest value of ionic radius?
Therefore, O2− is largest in size.
Which of the ion has largest ionic radius?
Ne is smaller than Ar. So, Na+ & Mg2+ are smaller than Cl− & P3−. Now, P3− is larger than Cl− as it has less protons hence force of attraction is less on P3− compared to Cl−. Hence P3− is largest among mentioned options.
What is the atomic radii of fluorine and neon?
Hence atomic radius of fluorine and neon are 0.75 angstrom and 1.6 angstrom.
Which of the following is the correct order of radius?
The correct order of radii is F−
Which has maximum atomic radius?
francium